Lotus Gemology Publications | Substance

The Lotus Gemology Bibliography

Lotus Gemology Publications • Substance

Below we provide a listing of the various publications that Lotus Gemology's team has been involved with. Sadly, because internet links so often change, we have had to eliminate direct links to the publications in question. Readers should be able to do searches on article titles to retrieve the papers if they are available online.

Wholes

  1. Hughes, R.W., ed. (2022) Jade • A Gemologist's Guide. Lotus Publishing, Bangkok, 534 pp.
  2. Hughes, E.B., Hughes, R.W. & Manorotkul, W. (2020) Inside Out: GEM•ology Through Lotus-Colored Glasses. Lotus Publishing, Bangkok, 152 pp.
  3. Hughes, R.W., Manorotkul, W. & Hughes, E.B. (2017) Ruby & Sapphire: A Gemologist's Guide. Lotus Publishing, Bangkok, 816 pp.
  4. Lotus Gemology (2015, 2018) From Peacock to Pigeon's Blood… An Introduction to Ruby & Sapphire Colors. In English & Chinese, Lotus Gemology, Bangkok, 48 pp.
  5. Hughes, R.W., Manorotkul, W. & Hughes, E.B. (2014) Ruby & Sapphire: A Collector's Guide. GIT, Bangkok, 384 pp.
  6. Yavorskyy, V. with Hughes, R.W. (2014) Terra Garnet. Printed in Hong Kong, Yavorskyy Co., 200 pp.
  7. Halford-Watkins, J.F. (2012; edited by R.W. Hughes) The Book of Ruby & Sapphire. RWH Publishing, 434 pp.
  8. Yavorskyy, V. & Hughes, R.W. (2010) Terra Spinel: Terra Firma. Printed in Hong Kong, Yavorskyy Co., 202 pp.
  9. Hughes, R.W. (1997) Ruby & Sapphire. Boulder, CO, RWH Publishing, 512 pp.
  10. Webster, R. & Read, P.G. (1994) Gems: Their Sources, Descriptions and Identification. Fifth edition, Butterworth-Heinemann, Oxford, 1026 pp. [Chapters 3 & 5 revised by R.W. Hughes].
  11. Hughes, R.W. (1991) Ruby & Sapphire. Butterworths Gem Books, Bangkok, White Lotus, 339 pp. [same as Corundum, but with an appendix of updates].
  12. Hughes, R.W. (1990) Corundum. Butterworths Gem Books, Northants, UK, Butterworth-Heinemann, 314 pp.

Pieces 

  1. Hughes, E.B. [2024) Interview with Wu Desheng. Arts of Asia, Spring, pp. 144–147.
  2. Khourie, K. (2023) The hardness of fei cui • A gemmological perspective. Journal of the Gemmological Association of Hong Kong, Vol. 44, pp. 45–57.
  3. Hughes, E.B. (2023) G&G Micro-World: Guest in Garnet: Metal Sulfide? Gems & Gemology, Vol. 59, No. 2, Summer, pp. 226–227.
  4. Hughes, E.B. (2023) Detecting corundum fillers with the long-wave UV torch. Australian Gemmologist, Vol. 28, No. 3, January–June, pp. 150–151.
  5. Hughes, E.B. (2023) G&G Micro-World: Apatite in Hackmanite. Gems & Gemology, Vol. 59, No. 1, Spring, p. 85.
  6. Hughes, R.W. (2023) Describing color: A fool's guide. GemGuide, May/June, pp. 1–7.
  7. Hughes, E.B., Vertriest, W. (2022) A Canary in the Ruby Mine: Low-Temperature Heat Treatment Experiments on Burmese Ruby. Gems & Gemology, Vol. 58, No. 4, Winter, pp. 400–423.
  8. Hughes, E.B. (2022) Interview with Yang Xi. Arts of Asia, Winter 2022, pp. 132–135.
  9. Hughes, R.W. (2022) Gem News International: Ruby: An expensive mistake. Gems & Gemology, Vol. 58, No. 2, Summer, pp. 258–259.
  10. Hughes, E.B. (2022) Gem News International: Yellow sapphires with unstable color. Gems & Gemology, Vol. 58, No. 2, Summer, pp. 259–260.
  11. Hughes, E.B. (2022) G&G Micro-World: Blue Apatite in Tanzanian Garnet. Gems & Gemology, Vol. 58, No. 2, Summer, pp. 226–227.
  12. Hughes, E.B. (2022) The Big Picture: Apatite Crystals Create a 'Stairway to Heaven'. Gems&Jewellery, Vol. 31, No. 2, Summer, pp. 8–9.
  13. Hughes, E.B. (2022) G&G Micro-World: An A-maze-ing Fingerprint in Spinel. Gems & Gemology, Vol. 58, No.1, Spring, p. 68.
  14. Hughes, E.B. (2022) G&G Micro-World: Apatite Oiling: Before and After. Gems & Gemology, Vol. 58, No.1, Spring, p. 63.
  15. Manorotkul, W. (2022) G&G Micro-World: Vietnamese Skyline. Gems & Gemology, Vol. 58, No.1, Spring, p. 69.
  16. Hughes, R.W. (2022) Treatment disclosure and other notes from the Eastern front. GemGuide, January/February, pp. 1–4.
  17. Hughes, E.B. (2021) G&G Micro-World: Apatite in Blue Sapphire. Gems & Gemology, Vol. 57, No. 3, Fall, p. 268.
  18. Hughes, E.B. (2021) Made you look • The challenges of identifying inclusions at first sight. Journal of the Gemmological Association of Hong Kong, Vol. 42, pp. 43–47.
  19. Hughes, E.B. (2020) G&G Micro-World: Unmasking emerald filler. Gems & Gemology, Vol. 56, No. 4, Winter, pp. 527–528.
  20. Hughes, R.W. (2020) Gem News International: Oiled tanzanite. Gems & Gemology, Vol. 56, No. 4, Fall, pp. 552–553.
  21. Hughes, R.W. (2020) Hidden Treasure • Collecting books about ruby & sapphire. IGR • Italian Gemological Review, Vol. 50, No. 10, pp. 52–62.
  22. Hughes, R.W. (2020) Gem News International: Oiled spinel. Gems & Gemology, Vol. 56, No. 3, Fall, pp. 443–444.
  23. Hughes, R.W., Hughes, E.B. and Manorotkul, W. (2020) Gem News International: Black star sapphire with dual treatments. Gems & Gemology, Vol. 56, No. 3, Fall, pp. 442–443.
  24. Hughes, R.W. (2020) G&G Micro-World: Böhmite in corundum. Gems & Gemology, Vol. 56, No. 2, Summer, pp. 292–293.
  25. Hughes, R.W. (2020) G&G Micro-World: Fluorophlogopite in Burmese spinel. Gems & Gemology, Vol. 56, No. 2, Summer, pp. 293–294.
  26. Hughes, R.W. (2020) Jade – In search of heaven. Gems&Jewellery, Vol. 29, No. 3, Autumn, pp. 22–24.
  27. Hughes, R.W. and Manorotkul, W. (2020) FTIR in gem testing • A pink sapphire lesson. Journal of the Gemmological Association of Hong Kong, Vol. 41, pp. 61–63.
  28. Hughes, E.B. (2020) Long-wave ultraviolet torches • A gemmologist's new best friend. Journal of the Gemmological Association of Hong Kong, Vol. 41, pp. 57–59.
  29. Hughes, E.B. (2020) G&G Micro-World: Actinolite in spinel. Gems & Gemology, Vol. 56, No. 1, Spring, p. 140.
  30. Hughes, E.B. (2020) G&G Micro-World: Staurolite in ruby. Gems & Gemology, Vol. 56, No. 1, Spring, p. 144–145.
  31. Hughes, E.B. (2020) G&G Micro-World: Triplite in beryl. Gems & Gemology, Vol. 56, No. 1, Spring, p. 145.
  32. Hughes, E.B. (2020) Interview with Lin Tze-Chuan • Contemporary Jade Carving in China. Arts of Asia, Vol. 50, No. 3, May–June, pp. 103–108.
  33. Hughes, R.W. and Hoffman, E.J. (2020) Hidden Treasure • Collecting the Literature of Jade. Arts of Asia, Vol. 50, No. 3, May–June, pp. 76–87.
  34. Hughes, R.W. & Hughes, E.B. (2020) World sapphire market update 2020. GemGuide, January/February 2020, Vol. 39, No. 1, pp. 4–10.
  35. Hughes, E.B. & Perkins, R. (2019) Madagascar sapphire: Low-temperature heat treatment experiments. Gems & Gemology, Vol. 55, No. 2, Summer, pp. 184–197.
  36. Hughes, E.B. (2019) G&G Micro-World: Curved banding in flame-fusion synthetic sapphires. Gems & Gemology, Vol. 55, No. 2, Summer, pp. 264–265.
  37. Hughes, E.B., Koivula, J.I., Manorotkul, W., Renfro, N. and Hughes, R.W. (2019) Spinel inclusions: An exercise in aesthetics. InColor, No. 43, pp. 66–73.
  38. Hughes, E.B. (2019) [Staurolite in Madagascar ruby]. In Jewellery and Jadeite, Tiancheng International, Hong Kong • Spring Auction, 29 May, p. 16.
  39. Hain, M. & Hughes, E.B. (2019) G&G Micro-World: Grandidierite inclusions in sapphires. Gems & Gemology, Vol. 55, No. 1, Spring, p. 112.
  40. [various labs, including Lotus Gemology] (2019) Squeezing sapphire: Pressure-heated sapphire.
  41. Hughes, E.B. (2019) Introduction to Hyperion: Lotus Gemology's gemstone inclusion database. AGTA Prism, Vol. 1, pp. 28–34.
  42. Hughes, E.B. (2018) Understanding inclusions: Regarding rutile. Gems&Jewellery, Vol. 27, No. 4, Winter, p. 40.
  43. Hughes, R.W. (2017) Book review: Diamonds—An Early History of the King of Gems. Journal of the Gemmological Association of Hong Kong, Vol. 40, p. 44.
  44. Hughes, E.B. (2018) G&G Micro-World: Drill hole in heated pink sapphire. Gems & Gemology, Vol. 54, No. 4, Winter, p. 448.
  45. Hughes, E.B. (2018) Understanding inclusions: Unmistakeable mines. Gems&Jewellery, Vol. 27, No. 3, Autumn, p. 40.
  46. Hughes, E.B. (2018) Behind the silk screen: A surprise in a star ruby. Journal of the Gemmological Association of Hong Kong, Vol. 39, pp. 37–38.
  47. Hughes, E.B. and Hughes, R.W. (2018) Madagascar sapphire: Crystal blue persuasion. Rivista Italiana di Gemmologia/Italian Gemological Review, No. 4, pp. 44–54.
  48. Hughes, E.B. (2018) G&G Micro-World: Star spinel with four and six rays. Gems & Gemology, Vol. 54, No. 2, Summer, p. 230.
  49. Hughes, E.B. (2018) Understanding inclusions: Superficial sapphires. Gems&Jewellery, Vol. 27, No. 2, Summer, p. 31.
  50. Hughes, E.B. (2018) The Big Picture: Mining for nephrite in Xinjiang Province, China. Gems&Jewellery, Vol. 27, No. 2, Summer, pp. 8–9.
  51. Hughes, E.B. (2018) Understanding inclusions: Discovering crystal types. Gems&Jewellery, Vol. 27, No. 1, Spring, p. 40.
  52. Hughes, E.B. (2018) G&G Micro-World: Six-rayed star in sapphire from Myanmar. Gems & Gemology, Spring, Vol. 54, No. 1, Spring, p. 71.
  53. Hughes, E.B. (2017) Book review: Ruby. Gems & Gemology, Vol. 53, No. 4, Winter.
  54. Hughes, E.B. (2017) G&G Micro-World: Remarkable twinned crystal in Mogok ruby. Gems & Gemology, Winter, Vol. 53, No. 4, p. 467.
  55. Hughes, E.B. (2017) G&G Micro-World: Growth tube cluster in sapphire. Gems & Gemology, Vol. 53, No. 3, Fall, pp. 371–372.
  56. Hughes, E.B. (2017) A sapphire's secret. Journal of the Gemmological Association of Hong Kong, Vol. XXXVIII, pp. 47–49.
  57. Hughes, E.B. (2017) Beyond octahedra: Inclusions in spinel. Journal of the Gemmological Association of Hong Kong, Vol. XXXVIII, pp. 41–44.
  58. Hughes, E.B. (2017) G&G Micro-World: Oiled ruby: A remarkable visual. Gems & Gemology, Vol. 53, No. 2, Summer, p. 244.
  59. Hughes, E.B. (2017) A sapphire's secret. The Gemguide, July/August, Vol. 36, Issue 4, pp. 18–20.
  60. Hughes, R.W. (2017) The Big Picture: Sapphire miners at Ilakaka, Madagascar. Gems&Jewellery, Vol. 26, No. 2, Summer, pp. 8–9.
  61. Hughes, R.W. (2017) Sapphire around the world. Pala International, Thorsen, L., ed., In Fourteenth Annual Sinkankas Symposium • Sapphire, Carlsbad, CA, 8 April, pp. 10–17.
  62. Hughes, R.W. (2017) A collector’s guide to the literature on rubies and sapphires. Pala International, Thorsen, L., ed., In Fourteenth Annual Sinkankas Symposium • Sapphire, Carlsbad, CA, 8 April, pp. 108–134.
  63. Hughes, E.B., Sudprasert, P. (2016) Introducing Hyperion: Inclusion photos from Lotus Gemology. Journal of the Gemmological Association of Hong Kong, Vol. XXXVII, pp. 51–55.
  64. Hughes, E.B., Chankhanatha, C., Burkhardt, A., Manorotkul, W. & Hughes, R.W. (2016) Padparadscha or pretender: Examination of an unusual pink-orange sapphire. Australian Gemmologist, Vol. 25, No. 11–12, pp. 389–392.
  65. Hughes, R.W. (2016) Pretty padparadscha. InColor, Winter, No. 30, pp. 30–40.
  66. Hughes, R.W. and Emmett, J.L. (2016) Alla scoperta della temperatura perduta, la fluorescenza UV, uno strumento gemmologico. Traspare: Periodico Tecnico Scientifico, No. 0, pp. 28–33.
  67. Hughes, R.W., Manorotkul, W. & Hughes, B. (2015) De nouveaux rubis à Madagascar. Revue de Gemmologie A.F.G., No. 193, Septembre, pp. 13–20.
  68. Hughes, R.W., Manorotkul, W. & Hughes, E.B. (2015) Let it bleed: New rubies from Madagascar. Lotusgemology.com.
  69. Hughes, R.W. (2015) Obituary: Dana Schorr. Gems&Jewellery, Vol. 24, No. 6, , p. 30.
  70. Hughes, R.W. (2015) Red rain: Mozambique ruby pours into the market. Journal of the Gemmological Association of Hong Kong, Vol. XXXVI, pp. 39–43.
  71. Koivula, J.I. & Hughes, R.W. (2015) Gem testing with the spectroscope. Lab World Magazine, Vol. 04, No. 04, May–July, pp. 05–08.
  72. Hughes, R.W. (2015) Book Review: Imperial Jade of Burma & Mutton-Fat Jade of India. Gems & Gemology, Spring.
  73. Hughes, E. B. (2015) Instrument Review: GemmoRaman-532. InColor. Spring, Issue 28, pp. 28–31.
  74. Lotus Gemology (2015) Lotus Gemology lab alert for oiled gems. InColor. Spring, Issue 28, pp. 18–23.
  75. Hughes, R.W. (2015) Red Rain: Mozambique ruby pours into the market. Lotusgemology.com.
  76. Hughes, R.W. (2014) Book Review: The Eduard Josef Gubelin Story: The Art and Science of Gems. The Journal of Gemmology, Vol. 34, No. 4, pp. 372–373.
  77. Hughes, R.W. (2014) Pleochroism in faceted gems: An introduction. Gems & Gemology, Vol. 50, No. 3, Fall, pp. 216–227.
  78. Hughes, E. B. (2014) Presidium Synthetic Ruby Identifier. InColor, Summer, Issue 26, pp. 18–23.
  79. Hughes, R.W. (2014) Book Review: John M. Saul's A Geologist Speculates. InColor, Summer, Issue 26, pp. 74–79.
  80. Hughes, R.W. (2014) Book Review: John M. Saul's A Geologist Speculates. Journal of the Gemmological Association of Hong Kong, Vol. XXXV, pp. 25–26.
  81. Hughes, E. B. (2013) A brief stay in heaven: Mogok revisited. InColor, Fall/Winter, pp. 40–45.
  82. Hughes, R.W. (2013) A collector’s guide to the literature on ruby and sapphire. Pala International, Thorsen, L., ed., In Eleventh Annual Sinkankas Symposium • Ruby, Carlsbad, CA, pp. 72–101.
  83. Hughes, R.W. (2013) Pigeon’s blood • A pilgrimage to Mogok • Valley of rubies. Pala International, Thorsen, L., ed., In Eleventh Annual Sinkankas Symposium • Ruby, Carlsbad, CA, pp. 32–41.
  84. Atichat, W. & Hughes, R.W. (2013) Rock Talk: A Mogok geological primer. InColor, Fall/Winter, pp. 46–50.
  85. Leelawatanasuk, T., Atichat, W., Pisutha-Arnond, V., Wattanakul, P., Ounorn, P., Manorotkul, W. & Hughes, R.W. (2013) Cobalt-doped glass-filled sapphires: An update. Australian Gemmologist, Vol. 25, No. 1, Jan.–Mar., pp. 14–20. 
  86. Hughes, R.W. (2012) The Ownership of Words: An essay on the meaning of padparadscha. Journal of the Gemmological Association of Hong Kong, Vol.  34, pp.  50–58.
  87. Hughes, R.W., Leelawatanasuk, T., Manorotkul, W., Kwok, B., Kiefert, L. & Caroll Marshall, A. (2012) The Chinese box: A Guangzhou jade market puzzle. Journal of the Gemmological Association of Hong Kong, Vol. 33, pp. 50–53. 
  88. Schorr, D., Hughes, R., Abduriyim, A., Rossman, G., Peretti, A., McClure, S. & Emmett, J. (2012) Andesine from Tibet, Inner Mongolia, Mexico & Oregon: A panel discussion. 8 pp.
  89. Peretti, A., Bieri, W., Hametner, K., Günther, D., Hughes, R.W. and Abduriyim, A. (2011) Fluid inclusions confirm authenticity of Tibetan andesine. InColor, No. 17, Summer, pp. 50–55.
  90. Abduriyim, A., McClure, S.F., Rossman, G.R., Leelawatanasuk, T., Hughes, R.W., Laurs, B.M., Lu, R., Isatelle, F., Scarratt, K., Dubinsky, E.V., Douthit, T.R. and Emmett, J.L. (2011) Research on gem feldspar from the Shigatse region of Tibet. Gems & Gemology, Vol. 47, No. 2, pp. 167–180. 
  91. Hughes, R.W. (2011) Andesine: Timeline of a Controversy.
  92. Hughes, R.W. and Pardieu, V. (2011) Downtown: Gem hunting in Central & Southern Tanzania.
  93. Hughes, R.W., Ishmael, A., Isatelle, F. & Wang, P. (2011) Laos – Land of a million elephants... and sapphires. InColor, No. 16, Spring, pp. 12–19.
  94. Hughes, R.W. (2010) Hunting Barrack Osama in Tibet: In search of the lost andesine mines.
  95. Hughes, R.W. (2010) The Emerald Buddha: Symbol of the Kingdom of Thailand.
  96. Hughes, R.W. (2010) Buying at the Source: Being an essay on the virtues of Dick's Law and other sundry maxims of the East.
  97. Hughes, R.W. (2010) The Black Prince's Ruby: Blood-red souvenir of conquest.
  98. Hughes, R.W. (2010) Moontown: A history of Chanthaburi.
  99. Emmett, J.L. and Hughes, R.W. (2010) Betwixt two worlds: A search for gemology in the 21st century. The Guide, January–February 2010, Vol. 29, Issue 1, pp. 1, 4–7.
  100. Hughes, R.W. & Pardieu, V. (2009) Red sky at dusk: Hunting the last Siamese ruby miner. 
  101. Wilson, Wendell E., Saul, John M., Pardieu, Vincent and Hughes, Richard W. (2009) Famous Mineral Localities: The Merelani tanzanite mines. Mineralogical Record, Vol. 40, No. 5, Sept.–Oct., pp. 346–408.
  102. Pardieu, V. & Hughes, R.W. (2008) Tsavorite: The untamed beauty. InColor, Fall, pp. 36–45. 
  103. Pardieu, V., Hughes, R.W. and Boehm, E. (2008) Spinel: Ressurection of a classic. InColor, Summer, pp. 10–18.
  104. Hughes, R.W. (2008) Chevron: 1; Burmese: 0. Posted 2 August, 2008.
  105. Pardieu, V. and Hughes, R.W. (2008) Working the blueseam: The tanzanite mines of Merelani. 
  106. Emmett, J.L. & Hughes, R.W. (2007) Trust: The ethics of gem treatment disclosure. Jewellery News Asia, March.
  107. Hughes, R.W., Castoro, L., Nyunt, H-P. K. & Kiefert, L. (2007) FTIR in Gem Testing • FTIR Intrigue.
  108. Hughes, R.W., Pardieu, V., Soubiraa, G. and Schorr, D. (2006) Moon over the Pamirs: Chasing ruby and spinel in Tajikistan. The Guide, Nov.–Dec., Vol. 25, Issue 6, pp. 8–13.
  109. Hughes, R.W. and Koivula, J.I. (2006) Under the same moon: Hunting the mother lode abroad.
  110. Hughes, R.W. and Koivula, J.I. (2006) A closer look at Malysheva emeralds.
  111. Hughes, R.W. and Koivula, J.I. (2006) AGTA GTC adds LIBS to its testing arsenal.
  112. Hughes, R.W., Du Toit, G., Befi, R. and Koivula, J.I. (2006) Beryllium-treated blue sapphires.
  113. Hughes, R.W. and Koivula, J.I. (2006) Seeing red: Genetics and color vision.
  114. Hughes, R.W., Pardieu, V. and Schorr, D. (2006) Sorcerers and Sapphires: A visit to Madagascar. The Guide, Jan.–Feb., Vol. 25, Issue 1, Part 1, pp. 1, 4–6.
  115. Hughes, R.W. and Koivula, J.I. (2006) Passport to obscurity.
  116. Hughes, R.W. (2006) Proletarian gemology: The blue filter. 
  117. Hughes, R.W. and Emmett, J.L. (2005) Heat seeker: UV fluorescence as a gemological tool. The Guide, Sept.–Oct., Vol. 24, Issue 5, Part 1, pp. 1, 4–7.
  118. Hughes, R.W. and Koivula, J.I. (2005) Dangerous curves: A reexamination of Verneuil synthetic corundum.
  119. Koivula, J.I. and Hughes, R.W. (2005) Living in the Dark Ages: The fiber-optic light. 
  120. Koivula, J.I. and Hughes, R.W. (2005) Following the Silk Road: Rutile silk in corundum. 
  121. Hughes, R.W. (2005) Inside out: The symmetry of crystals and inclusions. 
  122. Hughes, R.W. (2004) Fluxed up: The fracture healing of ruby. IDEX, Vol. 19, No. 173, September, pp. 110–120.
  123. Hughes, R.W. and Emmett, J.L. (2004) Fluxed up: The fracture healing of ruby. The Guide, Vol. 23, Issue 5, Part 1, Sept.–Oct., pp. 1, 4–9.
  124. Hughes, R.W. (2004) LIBS – A new beryllium testing method. Palagems.com. Posted April 29, 2004. 
  125. Ellias, C. and Hughes, R.W. (2004) The Kimberley Process: Appeasement comes to the diamond trade. The Guide, Vol. 23, Issue 1, Part 1, Jan.–Feb., pp. 1, 4–7, 15).
  126. Hughes, R.W. and Leber, B. (2003) Banned! Burmese gems in the crossfire.
  127. Hughes, R.W. (2003) The history and politics of heat. The Guide, Vol. 22, Issue 5, Part 1, Sept.–Oct., pp. 1, 4–9, 15.
  128. Emmett, J.L., Scarratt, K., McClure, S.F., Moses, T., Douthit, T.R., Hughes, R., Novak, S., Shigley, J.E., Wuyi Wang, Bordelon, O., Kane, R.E. (2003) Beryllium diffusion of ruby and sapphire. Gems & Gemology, Vol. 39, No. 2, Summer, pp. 84–135. [voted ‘Article of the year’ by the magazine’s readers]
  129. Hughes, R.W. (2002) Walking the line in ruby & sapphire. The Guide, July/August, Vol. 21, Issue 4, Part 1, pp. 4–8.
  130. Hughes, R.W. (2002) The Skin Game. The Guide,Vol. 21, No. 2, March–April, pp. 3–7.
  131. Hughes, R.W. (2002) Love and Hate: Max's Millions and the Lao sapphire mine saga. The Guide, Vol. 21, No. 1, Part 1, Jan.–Feb., pp. 4–9, 16.
  132. Hughes, R.W. (2001) Seeing Red: A guide to ruby connoisseurship. The Guide, Vol. 20, No. 6, Issue 5, Part 1, Nov.–Dec., pp. 4–7, 16. 
  133. Hughes, R.W. (2001) Digital Devil: Blues with a feeling. GK Magazine, Vol. 3, No. 6, September–October., pp. 44, 70. 
  134. Hughes, R.W. (2001) Out of the black: Burmese gems & politics. The Guide, Vol. 20, No. 4, Issue 5, Part 1, Sept.–Oct., pp. 8–14. 
  135. Hughes, R.W. (2001) Burma: Heaven and hell in the hunt for jade. GK Magazine, Vol. 3, No. 5, May–June, pp. 25–29. 
  136. Hughes, R.W. (2001) The Digital Devil: The bigger they are. GK Magazine, Vol. 3, No. 4, Mar.–April., pp. 48, 72. 
  137. Hughes, R.W. (2001) Passion Fruit: A lover's guide to blue sapphire. The Guide, Vol. 20, No. 2, Part 1, March–April., p. 3–5, 15. 
  138. Hughes, R.W. (2001) The Digital Devil: Getting out of the kitchen GemKey, Vol. 3, No. 2, Jan.–Feb., p. 51, 73. 
  139. Hughes, R.W., Galibert, O., Bosshart, G., Ward, F., Thet Oo, Smith, M., Tay Thye Sun, Harlow, G.E. (2000) Burmese jade: The inscrutable gem. Gems & Gemology, Vol. 36, No. 1, Spring, pp. 2–26.
  140. Hughes, R.W. & Kouznetsov, Nickolai (2000) From Russia with jade. GemKey, Vol. 3, No. 1, pp. 58–66.
  141. Hughes, R.W. (2000) The Digital Devil: The un-beautiful game. GemKey, Vol. 2, No. 6, Sept.–Oct., p. 45, 86. 
  142. Hughes, R.W. (2000) The Digital Devil: Who's fooling who? GemKey, Vol. 2, No. 5, July–August, p. 50.
  143. Hughes, R.W. (2000) Fun down under. The Professional Gemologist, Vol. 3, No. 1, Spring/Summer, pp. 1–2.
  144. Hughes, R.W. (2000) The Digital Devil: If it's doubly refractive like a duck… GemKey, Vol. 2, No. 4, May–June, p. 64, 107.
  145. Hughes, R.W. (2000) The Digital Devil: Check Your Gut Instincts at the Door. GemKey, Vol. 2, No. 3, March–April, pp. 62–63, 104.
  146. Hughes, R.W. and Sickafus, K.E. (1999) Spinel compounds: Structure and property relations. Journal of the American Ceramic Society, Vol. 82, No. 12, December, pp. 3277–3278.
  147. Hughes, R.W. & Vock, R. (2000) Blue velvet: Kashmir sapphires. The Professional Gemologist, Vol. 3, No. 1, Spring/Summer, pp. 2–3. 
  148. Hughes, R.W. and Underwood, T. (1999) Surface-enhanced topaz. Cornerstone, Winter, p. 1, 4–5, 7–8.
  149. Hughes, R.W. and Slavens, C. (1999) Tales from the Crypt – GQI lab news: Jadeite – Repaired, assembled, treated. GQ Eye, Vol. 2, No. 1, Winter, pp. 10–11.
  150. Hughes, R.W. (1999) The Devil Down Under. Cornerstone, Fall, pp. 1, 3.
  151. Hughes, R.W. (1999) The Digital Devil: Opals and Oranges. GemKey, Vol. 2, No. 1, November–December.
  152. Hughes, R.W. (1999) The Digital Devil: From the Laser Drill into the Fire. GemKey, Vol. 1, No. 6, September–October, pp. 70, 112.
  153. Hughes, R.W. (1999) The Digital Devil: Whatever happened to romance? GemKey, Vol. 1, No. 5, July–August, p. 66.
  154. Hughes, R.W. (1999) The Digital Devil: Crying Uncle. GemKey, Vol. 1, No. 4, May–June, p. 66.
  155. Hughes, R.W. (1999) The Digital Devil: Tricky Dick's Guide to Web Designer Netiquette. GemKey, Vol. 1, No. 3, March-April, pp. 64, 96.
  156. Hughes, R.W. (1999) Tales from the Crypt – GQI lab news: Irradiated corundum; sapphire with CO2 inclusion. GQ Eye, Vol. 2, No. 2, Spring, p. 8.
  157. Hughes, R.W. (1999) Internet Hell. GemKey Magazine, Vol. 1, No. 2, Jan–Feb., pp. 56, 88. 
  158. Hughes, R.W. (1999) The crying game: Diamond color grading. GQ Eye, Vol. 2, No. 1, pp. 3–5. 
  159. Hughes, R.W. (1999) Burma's jade mines: An annotated Occidental history. Journal of the Geo-Literary Society, Vol. 14, No. 1, January, pp. 15–35.
  160. Galibert, O. and Hughes, R.W. (1999) Sur la piste de la ligne verte. Revue de Gemmologie A.F.G., No. 136, pp. 19–25; RWHL.
  161. Hughes, R.W. and Ward, F. (1998) Heaven and hell. GemKey, Vol. 1, No. 1, Nov-Dec, pp. 38–45.
  162. Hughes, R.W. (1998) Scary stuff: Enhancement disclosure. GQ Eye, Vol. 1, No. 1, Fall, pp. 1–2.
  163. Hughes, R.W. (1998) Dogfights: Dealers versus gemologists. GemKey, Vol. 1, No. 1, Nov-Dec, pp. 52, 69.
  164. Hughes, R.W., Galibert, O. et al. (1998) Abenteuerliche Reise ins Reich der Jademinen. Uhren Jewelen Schmuck, Feb, pp. 84–94.
  165. Hughes, R.W. (1998) The crying game: Diamond color grading. Wahroongai News, Vol. 32, No. 9, Sept, pp. 34–36.
  166. Hughes, R.W. (1998) Cloak and dagger: The politics of Opticon. GQ Eye, Vol. 1, No. 1, Fall, pp. 3, 6.
  167. Hughes, R.W. and Galibert, O. (1998) Foreign affairs: Fracture healing/filling of Möng Hsu ruby. Australian Gemmologist, Vol. 20, No. 2, April-June, pp. 70–74.
  168. Hughes, R.W. and Zajicek, R. (1997) Catfights – Enhancement Codes and Trade Wars. ICA Gazette, June, pp. 7–9.
  169. Hughes, R.W. and Galibert, O. (1997) The green line to Hpakan. Bangkok Post, Bangkok, April 6, 1997, Outlook: pp 4–5.
  170. Hughes, R.W. (1997) Where twain do meet. Momentum, Vol. 5, No. 16, pp. 16–19.
  171. Hughes, R.W. and Ward, F. (1997) Heaven and hell: The quest for jade in Upper Burma. Asia Diamonds, Vol. 1, No. 2, Sept-Oct, pp. 42–53.
  172. Hughes, R.W. (1997) Sang de pigeon: Un pélerinage à Mogok – Vallée des rubis. Revue de Gemmologie A.F.G., Octobre, No. 132, pp. 8–13; RWHL.
  173. Hughes, R.W. (1997) Tracing the green line. Discovery, Vol. 25, No. 2, Feb, pp. 69–73.
  174. Hughes, R.W. (1997) Devil's Advocate: Thailand after the fall. Cornerstone, Winter, 1997, pp. 1, 3–6.
  175. Hughes, R.W. (1997) Devil's Advocate: Life during wartime. Asia Diamonds, Vol. 1, No. 2, Sept-Oct, pp. 68–72.
  176. Hughes, R.W., Galibert, O. et al. (1997) Tracing the green line: A journey to Burma's jade mine. Jewelry Circle's Magazine [in Chinese], No. 42, April, pp. 136–139; No. 43, July, pp. 136–139; No. 44, Oct, pp. 136–139.
  177. Hughes, R.W., Galibert, O. et al. (1997) In search of heaven's stone. Momentum, Vol. 5, No. 15, June-Aug, pp. 18–23.
  178. Hughes, R.W., Galibert, O. et al. (1996–97) Tracing the green line: A journey to Myanmar's jade mines. Jewelers' Circular-Keystone, Vol. 167, No. 11, Nov, pp. 60–65; Vol. 168, No. 1, Jan, pp. 160–166.
  179. Hughes, R.W. (1997) Death of the Thai ruby. Cornerstone, Summer, pp. 1, 3–6.
  180. Hughes, R.W. (1996) Ruby and sapphire from Laos. JewelSiam, Vol. 1, No. 1, Feb-March, pp. 36–37.
  181. Hughes, R.W. and Galibert, O. (1996) Renaissance in Rubyland. Colored Stone, Vol. 9, No. 6, Nov-Dec, pp. 29–33.
  182. Hughes, R.W. and Galibert, O. (1996) Les sapphires de Montana [part 1]. Revue de Gemmologie, AFG, No. 128, pp. 4–6.
  183. Hughes, R.W. (1996) Pigeon's blood. Momentum, Vol. 4, No. 13, Dec 1996–Feb 1997, pp. 18–21.
  184. Hughes, R.W. (1996) Letter to the editor [re: large Madagascar sapphire]. JewelSiam, Vol. 7, No. 4, Aug-Sept, p. 28.
  185. Hughes, R.W. (1996) Devil's Advocate: Death of the Thai ruby. JewelSiam, Vol. 7, No. 4, Aug-Sept, pp. 100–105.
  186. Hughes, R.W. (1995–96) Devil's Advocate: Dispatch from hyperbole. JewelSiam, Vol. 6, No. 6, Dec-Jan, pp. 82–85.
  187. Hughes, R.W. (1995) Montana's Big Sky Sapphires. JewelSiam, Vol. 6, No. 4–5, Aug-Sept, pp. 83–88; Oct-Nov, pp. 51–54.
  188. Hughes, R.W. and Win, U Hla. (1995) Burmese sapphire giants. Journal of Gemmology, Vol. 24, No. 8, Oct, pp. 551–561.
  189. Hughes, R.W. (1995) Letter to the Editor [on Verneuil process]. Canadian Gemmologist, Vol. 16, No. 2, pp. 59–60.
  190. Hughes, R.W. (1995) Devil's Advocate: On and on and on. JewelSiam, Vol. 6, No. 2, April/May, pp. 81–83.
  191. Hughes, R.W. (1995) Devil's Advocate: Connoisseur's guide to famous rubies. JewelSiam, Vol. 6, No. 3, June-July, pp. 44–51.
  192. Hughes, R.W. (1995) A brief history of heat. Australian Gemmologist, Vol. 19, No. 2, pp. 52–54.
  193. Galibert, O. and Hughes, R.W. (1995) Chinese ruby and sapphire: A brief history. Journal of Gemmology, Vol. 24, No. 7, July, pp. 467–473.
  194. Hughes, R.W. (1994) The rubies and spinels of Afghanistan: A brief history. Journal of Gemmology, Vol. 24, No. 4, October, pp. 256–267.
  195. Hughes, R.W. (1994) The name game. Australian Gemologist, Vol. 18, No. 10, May, pp. 311–315.
  196. Hughes, R.W. (1993) I beg to differ… A reply to the question of UN sanctions against Cambodia and Thailand's past role in Southeast Asia. Thailand Jewellery Review, Vol. 6, No. 3, March, pp. 199–202.
  197. Hughes, R.W. (1993) Bottling up the treatment genie. Thailand Jewellery Review, Vol. 6, No. 3, March, pp. 130–132.
  198. Hughes, R.W. (1992) Vietnam's ruby quandary. Thailand Jewellery Review, Vol. 5, No. 11, pp. 22–25.
  199. Hughes, R.W. (1992) Vietnam's Quy Chau ruby mines. JewelSiam, Vol. 3, No. 4, July/August, pp. 56–62.
  200. Hughes, R.W. (1992) Mining Thai, Lao & Cambodian rubies and sapphires. JewelSiam, Directory, 1992, pp. 125–133.
  201. Hughes, R.W. (1992) End of the great ruby famine. Thailand Jewellery Review, Vol. 5, No. 12, pp. 24–27.
  202. Hughes, R.W. (1992) The embargo still looms. Thailand Jewellery Review, Vol. 5, No. 12, pp. 28–29.
  203. Hughes, R.W. (1992) Devil's Advocate: Vampire blues: deep-diffusion treated sapphires. JewelSiam, No. 3, May-June, pp. 83–86.
  204. Hughes, R.W. (1992) Assembled synthetic ruby. ICA Laboratory Alert, No. 64, 2 pp.
  205. Hughes, R.W. (1991) There's a rumble in the jungle – The sapphire face-lift face-off saga. Gemological Digest, Vol. 3, No. 2, pp. 17–31.
  206. Hughes, R.W. (1991) Thailand taking the heat. JewelSiam, Vol. 2, No. 2, pp. 42–48.
  207. Hughes, R.W. (1991) The naked eye: A diamond's worst friend. JewelSiam, Vol. 2, No. 3, pp. 72–75.
  208. Hughes, R.W. and Sersen, W.J. (1991) Vietnamese rubies rock the market. JewelSiam, Vol. 2, No. 2, p. 89.
  209. Hughes, R.W. and Sersen, W.J. (1991) Bangkok gem market review: Vietnamese ruby. Gemological Digest, Vol. 3, No. 2, pp. 68–70.
  210. Hughes, R.W. (1991) I had a dream. JewelSiam, Vol. 2, No. 4, p. 99.
  211. Hughes, R.W. (1991) Corundum identification in a nutshell. Gemological Digest, Vol. 3, No. 2, pp. 29–31.
  212. Hughes, R.W. (1990) Thailand's jewelry industry – A "black paper" on the state of the trade. JewelSiam, Vol. 1, No. 4, pp. 102–104.
  213. Hughes, R.W. and Sersen, W.J. (1990) Bangkok gem market review – ICA in Colombo: the good, the bad and the ugly. Gemological Digest, Vol. 3, No. 1, pp. 69–72.
  214. Hughes, R.W. (1990) A question of origin. Gemological Digest, Vol. 3, No. 1, pp. 16–32.
  215. Hughes, R.W. (1989, 1990) Talkin' 'bout gem-testing instruments. Australian Gemmologist, Vol. 17, No. 4, pp. 159–164; No. 5, pp. 242–246.
  216. Hughes, R.W. (1989) The inclusions of Turkana sapphires. Gemological Digest, Vol. 2, No. 4, pp. 35–36.
  217. Hughes, R.W. (1989) Diamond grading: Does it work? Gemmology Canada, No. 22, September.
  218. Hughes, R.W. and Sersen, W.J. (1990) Bangkok gem market review – ICA in Colombo: the good, the bad and the ugly. Gemological Digest, Vol. 3, No. 1, pp. 69–72.
  219. Hughes, R.W. (1989) Confessions of a stonist. Gemological Digest, Vol. 2, No. 4, p. 37.
  220. Hughes, R.W. (1988) Surface repaired corundum – two unusual variations. Journal of Gemmology, Vol. 21, No. 1, pp. 8–10.
  221. Hughes, R.W. and Sersen, W.J. (1988) Bangkok Gem Market Review: The Kanchanaburi sapphire secret. Gemological Digest, Vol. 2, No. 3, pp. 37–39.
  222. Hughes, R.W. and Sersen, W.J. (1988) Bangkok gem market review. Gemological Digest, Vol. 2, Nos. 1 & 2, pp. 20–22.
  223. Hughes, R.W. (1988) Reappearance of surface-diffusion treated sapphires in Bangkok. ICA Lab Alert, No. 12, 2 pp.
  224. Hughes, R.W. (1988) Pleochroism and colored stone grading. Gemological Digest, Vol. 2, No. 3, pp. 16–24.
  225. Hughes, R.W. (1988) Mogok then and now. Gemological Digest, Vol. 2, No. 3, pp. 40–41.
  226. Hughes, R.W. (1988) Identifying yellow sapphires – two important techniques. Journal of Gemmology, Vol. 21, No. 1, pp. 23–25.
  227. Hughes, R.W. (1988) Diamond grading: Does it work? Personal Property Journal, Vol. 1, No. 2, pp. 16–20.
  228. Hughes, R.W. (1988) Colored stone grading – to be or not to be. Gemological Digest, Vol. 2, No. 3, pp. 11–15.
  229. Hughes, R.W. (1988) Brilliance, windows and extinction in gemstones. Gemological Digest, Vol. 2, Nos. 1 & 2, pp. 10–15.
  230. Hughes, R.W. (1987) The world's largest – bonanza or banana? Gemological Digest, Vol. 1, No. 1, p. 4.
  231. Hughes, R.W. (1987) Unusual composite ruby. ICA Lab Alert, No. 2, 1 p.
  232. Hughes, R.W. (1987) Technique for detection of heat treatment in Sri Lankan yellow and orange sapphires. ICA Lab Alert, No. 1.
  233. Hughes, R.W. (1987) Ruby or pink sapphire? A lesson from the past. Gemological Digest, Vol. 1, No. 1, p. 3.
  234. Hughes, R.W. (1987) Plastic coating of gemstones. ICA Lab Alert, No. 3, 1 p.
  235. Hughes, R.W. (1987) The plastic coating of gemstones. Transactions of the XXI International Gemmological Conference – Brazil 1987, MacGregor, I., ed., In International Gemmological Conference, Brazil, pp. 31–33.
  236. Hughes, R.W. (1987) The plastic coating of gemstones. The Australian Gemmologist, Vol. 16, No. 7, pp. 259–261.
  237. Hughes, R.W. (1987) Identifying yellow sapphires – two important techniques. Transactions of the XXI International Gemmological Conference, MacGregor, I., ed., In International Gemmological Conference, Brazil, pp. 35–36.
  238. Hughes, R.W. (1987) Identifying heat-treated Sri Lankan yellow sapphires. ICA Lab Alert, No. 1, 2 pp.
  239. Hughes, R.W. (1987) Glass infilling of cracks in ruby. ICA Lab Alert, No. 4, 1 p.
  240. Hughes, R.W. (1987) Gem treatments: To disclose or not to disclose. Gemological Digest, Vol. 1, No. 1, pp. 1–2.
  241. Hughes, R.W. (1987) Diamond grading: Does it work? Gemological Digest, Vol. 1, No. 2, pp. 1–3.
  242. Hughes, R.W. (1987) Detection of color banding/growth zoning in natural and synthetic yellow/orange sapphires. ICA Lab Alert, No. 5, 1 pp.
  243. Hughes, R.W. (1987) Are you an expert on gem treatments? National Jeweler, Vol. 31, No. 20, pp. 50–52.
  244. Hughes, R.W. (1984) Surface repaired rubies – a new gem treatment. Jewellery News Asia. No. 6, July–August, pp. 1, 33.
  245. Hughes, R.W. (1984) Surface repaired rubies. The Australian Gemmologist, Vol. 15, No. 8, pp. 279–280.
  246. Hughes, R.W. (1984) AIGS Gem Lab report: Surface repaired rubies – a new gem treatment. The Canadian Gemmologist, Vol. 5, No. 3, p. 85.

Snippets 

  1. Soong, E. (2023) Inside Out: Gemmologist Billie Hughes shows us the incredible world hidden within precious gemstones. Tatler Malaysia, October 2023. [interview with E. Billie Hughes]
  2. Yap, C. (2023) L'Ecole, School of Jewelry Arts by Van Cleef & Arpels teaches what nature has to offer. Robb Report Singapore, 4 May. [article featuring E. Billie Hughes]
  3. Gems&Jewellery (2022) The Joys of Gem-A Membership, Gems&Jewellery, Vol. 31, No. 4, Winter p. 21. [interview with E. Billie Hughes]
  4. Liu, S.C. (2022) One of a Kind, Modern Weekly, High Jewelry Special Issue 2022. [interview with E. Billie Hughes]
  5. Branstrator, B. (2022) 10x5: The Biggest Research Developments of the Past 5 Years. National Jeweler, State of the Majors 2022. [feature article featuring Lotus Gemology]
  6. Dominy, G. (2022) Feature Interview: Meet Wimon Manorotkul. Gemmology Today, March 2022 Issue. [interview with Wimon Manorotkul]
  7. De Vincenti, C. (2021) Billie Hughes, l'enfant prodige! Gold'Or, February/March, No. 1, pp.52–53. [interview with E. Billie Hughes]
  8. Sutichunta, P. (2021) #CraftEight เปิดมิติใหม่ของโลกอัญมณีกับ Crafters ที่ถ่ายทอดแนวคิดร่วมสมัยเกี่ยวกับมณีนพเก้า. Vogue Thailand, February, p.62–67 [feature article quoting E. Billie Hughes]
  9. Sutichunta, P. (2020) Precious Hues. Vogue Thailand, October, p.92. [feature article quoting E. Billie Hughes]
  10. Uapipatanakul, T. (2020) Interview with Billie Hughes. Ceramics Journal, October, pp, 29–35. [interview with E. Billie Hughes]
  11. Boonjong, P. (2020) L'École ชวนเราสำรวจลึกถึงแง่มุมใหม่ที่คาดไม่ถึงของทับทิมและแซฟไฟร์​. L'Officiel Thailand, 16 August. [feature article quoting E. Billie Hughes]
  12. Pellegrino, K. (2020) Rubies et Saphirs, Les Stars A L'Exposition Des Arts Joailliers Asie-Pacifique À Hong Kong. Forbes France, 11 July. [feature article with E. Billie Hughes]
  13. Knott, K. (2020) Precious gems go under the microscope in Hong Kong exhibition. South China Morning Post Magazine, 10 July. [feature article about exhibition and photomicrography photography by E. Billie Hughes]
  14. Tsai, F. (2020) Lotus Gemology's Billie Hughes on Family, Rare Finds, and a Career in Gems. Prestige, 29 June. [interview with E. Billie Hughes]
  15. Author unknown. (2020) Discover the gemstones, ruby & sapphire, an exhibition by L'École. ZolimaCityMag.com, 17 June. 
  16. Author unknown. (2020) L'École Asia Pacific Unveils "Discover the Gemstones, Ruby & Sapphire" Exhibition. TheCloseteur.com, 10 June. [feature article quoting and featuring photography of E. Billie Hughes]
  17. Tsui, D. (2020) Photomicrography, Rubies & Sapphires Centre Stage at L'École Asia Pacific. CoBoSocial.com, June. [feature article with E. Billie Hughes]
  18. Merle, S. (2020) Inside Out: "Journey into the Center of a Gem" with Billie Hughes. TheFrenchJewelryPost.com, 24 March. [feature article about lecture by E. Billie Hughes]
  19. (2019) Time for treatments. Gems&Jewellery, Vol. 28, No. 4, Winter, p. 36–37. [interview with E. Billie Hughes]
  20. Rice, A. (2019) An interview with ruby expert Richard Hughes. GemSociety.org, June. [interview with Richard Hughes]
  21. Dussart, S. (2019) A gem dealer’s journal: Discovering the mysterious world of jade with legendary gemologist Richard W. Hughes. AsiaLounges.com, 20 May.  [interview with Richard Huhges]
  22. Hyman, J. & Volovar, L. (2019) "Gem labs with Billie Hughes." Gemology Worldwide, April. [Audio podcast featuring interview with E. Billie Hughes]
  23. Branstrator, B. (2019) This database of gemstone inclusions is now open to all. National Jeweler, February. [feature article quoting E. Billie Hughes]
  24. Dussart, S. (2019) A gem dealer's journal: the birth of Hyperion. AsiaLounges.com, 28 January. [interview with E. Billie Hughes]
  25. Gems&Jewellery (2018) And the winners are… [Lotus Gemology’s Richard Hughes named Gem-A’s ‘Photographer of the Year;’ E. Billie Hughes wins the External category]. Gems&Jewellery, Vol. 27, No. 4, Winter, pp. 8–9; RWHL.
  26. Favoroso Ressigeac, M. (2018) IGT inspirational interview series: conversation with Richard W. Hughes. IGTThailand.com, 26 July. [interview with Richard Hughes]
  27. Minieri, P. (2018) Close-up photographs of gemstone inclusions: are they works of art?. Rivista Italiana Di Gemmologia, 14 February. [feature article with photos from E. Billie Hughes and Richard Hughes]
  28. Dominy, G. (2017) Women in Gemmology: Interview with E. Billie Hughes. Gemmology Today, February 2017 Issue. [interview with E. Billie Hughes]
  29. Minieri, P. (2017) Driving gemstone lovers to corundums: A twenty years tireless work for the most accurate survey on rubies and sapphires [Review of Ruby & Sapphire: A Gemologist’s Guide]. [in Italian, with English translation online], Rivista Italiana di Gemmologia – Italian Gemological Review, No. 0, pp. 22–23.
  30. Minieri, P. (2016) Ecco i grattacieli di Dubai finalmente costruiti in Groenlandia. No, e solo un cristallo negativo in uno zaffiro. Trasparenze.net, 30 November. [feature article with E. Billie Hughes]
  31. Dussart, S. (2016) An eye inside the labs with Lotus' Billie Hughes: Part 2 – Dialogue with a multiple photomicrography award winner. AsiaLounges.com, 3 November. [interview with E. Billie Hughes] 
  32. Dussart, S. (2016) An eye inside the labs with Lotus' Billie Hughes: Part 1 – The Lab. AsiaLounges.com, 3 November. [interview with E. Billie Hughes]
  33. Stoodley, S.G. (2016) Rubies Are Killing It at Auction–Here Are Five of the Best Ever Sold. RobbReport.com, 21 April. [feature article quoting Richard Hughes]
  34. Thompson, S.E. (2015) Spectacular Spinels. JewelleryNetAsia.com, 23 September. [feature article quoting Richard Hughes with photography by Wimon Manorotkul]
  35. Author unknown. (2015) Inteview avec Richard W. Hughes. LeGemmologue.com, 29 April.
  36. Gomelsky, V. (2015) Rubies, blood-red beauty. The New York Times, 17 March. [feature article quoting Richard Hughes]
  37. Gomelsky, V. (2015) 7 things you probably don't know about rubies. JCK Magazine, 5 March. [feature article quoting Richard Hughes]
  38. Duggleby, L. (2014) Tricks and stones: the gem traders of Chanthaburi. South China Morning Post Magazine, 10 August. [feature article quoting Richard Hughes and Wimon Manorotkul]
  39. Gomelsky, V. (2014) On the origins of gems. International New York Times, 17 March. [feature article quoting Richard Hughes]
  40. Mahtani, S. and Barta, P. (2013) Secret rocks and gem hunters. Wall Street Journal Money, 17  May. [feature article with Richard Hughes]
  41. Byron, J. (1998) Colourful language [interview with Richard W. Hughes]. Australian Jeweller, May, p. 10.
  42. Allison, T. (1991) The stars of Siam. Asia Magazine, No. F-18, June 21–23, pp. 6–11.
  43. Ward, F. (1991) Rubies and sapphires. National Geographic, No. 4, Oct, pp. 100–125.
  44. Kremkow, C. (1984) Thai fraud – fact or fiction? An interview with AIGS Lab director Richard Hughes. The Goldsmith, Oct, p. 42.