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21. Lecture • Ruby Inclusions • Sweden • 17 June 2017: (News); A description of the inclusions found in ruby around the world, including Myanmar, Thailand/Cambodia, Vietnam, Tajikistan, Madagascar and Mozambique. Dream of the Red Chamber: The Internal World of ...; Created on 17 June 2017
22. Gem Inclusion Pairs • Hyperion Siamese Twins: (Articles); ... fissures between the individual crystal grains that make up the jade rock. These fissures are then filled with a polymer. Thus the treatment removes brown discoloration and greatly improves the translucency. ...; Created on 29 January 2016
23. Inclusions in Gemstones • Hyperion Literature Sources: (Articles); ... R. and Nassau, K. (1981) The heat and diffusion treatment of natural and synthetic sapphires. Journal of Gemmology, Vol. 17, No. 8, Oct., pp. 528–541; RWHL*. Du Toit, G., Hughes, R.W. et al. (2006) Beryllium-treated ...; Created on 22 January 2016
24. Ruby From Madagascar • Let It Bleed • Lotus Gemology: (Articles); ... indication of artificial heat treatment, was absent. This, along with the inclusions, suggested that all the stones submitted had not been subjected to heat treatment. Some specimens showed a large IR ...; Created on 28 August 2015
25. Gem Enhancements Explained • Lotus Gemology: (Lab); ... treatments which are detected. Our approach is to give our customers the same information we would want when purchasing a gem. The following tables explain the enhancement terminology as given on Lotus ...; Created on 14 May 2015
26. GemmoRaman-532 • Instrument Review • Lotus Gemology: (Articles); ... than ever. With treatments become increasingly sophisticated, gemologists and traders search for new tools to help identify stones. How does one make the call on a completely clean spinel, with no ...; Created on 20 March 2015
27. Oiled Gems Lab Alert • Lotus Gemology: (Articles); ... decide what is and is not acceptable in terms of treatments. Certainly there is a place in the market for natural, treated, synthetic and imitation stones. That said, we have had a string of clients who, ...; Created on 09 March 2015
28. Lecture • Ruby Inclusions • Hong Kong • 18 September 2014: (News); ... the world are revealed. Also discussed are ruby treatments and how to identify them. When 18 September 2014; 10:00–11:00 AM Where Gübelin Gem Lab Conference Hong Kong Gem and Jewellery Show Room ...; Created on 18 September 2014
29. Lotus Gemology Price List: (Articles); Lotus Gemology produces what we feel are the finest gem testing reports in the gemological field. Each report includes gemstone identification, treatment identification and, in certain cases (mainly ruby, ...; Created on 04 July 2014
30. Testing Yellow Sapphire • Passport to Obscurity: (Articles); ... piece of jewelry. In gems of this type, inclusions are often sufficient to immediately identify the host as a natural sapphire, as well as prove or disprove heat treatment. When present, a 3160 infrared ...; Created on 31 May 2014
31. Ruby, Pink Sapphire & Padparadscha • Walking the Line: (Articles); ... when compared with treated stones of similar quality. A fraudulent treatment sometimes seen is where a pink sapphire is irradiated to give it a padparadscha color. The resulting color is unstable and ...; Created on 01 May 2014
32. FTIR in Gem Testing • FTIR Intrigue • Lotus Gemology: (Articles); ... Such treatment is typically unmasked by reference to FTIR spectra. When we first checked the FTIR spectrum via the DRIFTS method, large polymer peaks were found. A recheck with the beam condenser method ...; Created on 25 April 2014
33. Lenny Cram's Opal Mine • Fun Down Under • Lotus Gemolog: (Articles); ... industry. So they should begin to behave like it. When a company develops an industry-crippling treatment such as the Pegasus (HPHT) diamond, that company has a responsibility to assist in its identification ...; Created on 20 April 2014
34. Beryllium Diffusion in Orange Sapphire • The Skin Game: (Articles); ... Skin Game March 2002 – In October 2001, Australian gemologist Terry Coldham informed the author of a new treatment for orange sapphire. His initial report was that a burner in Chanthaburi, Thailand had ...; Created on 19 April 2014
35. Jade in Upper Burma • Heaven and Hell • Lotus Gemology: (Articles); ... treatment applied. The efficacy of this bug protection was made crystal clear in Mogaung, where Hughes and French gem dealer, Olivier Galibert slept side-by-side in the same bed. Come morning, Galibert' ...; Created on 17 April 2014
36. Burma’s Jade Mines • Tracing the Green Line • Lotus Gemology: (Articles); ... the skin by pinching it with a coin. The Maw-sisa miner at left is prepared for any kind of flying pest, as was Richard Hughes after he had the treatment applied. The efficacy of this bug protection was ...; Created on 14 April 2014
37. Pigeon's Blood • Pilgrimage to Mogok – Valley of Rubie: (Articles); ... of their clarity and color to heat treatment, this statement does not seem so outlandish (unfortunately, most Burmese rubies are today also heat treated). For the love of a brother Brotherly ...; Created on 12 April 2014
38. Gem Testing with the Spectroscope • Lotus Gemology: (Articles); ... not undergone high-temperature heat treatment. A complete identification was possible in this case with just two instruments. An added bonus in this instance was that no refractometer was needed, which ...; Created on 09 March 2014
39. Photoatlas of Inclusions in Gemstones, Volume 2 • Book Review • Lotus Gemology: (Book Reviews); ... The effects of heat treatment on zoisite (tanzanite). Page 809. Eye candy But I doth protest too much. The Photoatlas series ...; Created on 07 March 2014
40. Lotus Gemology Publications • Substance: (Library); ... RWHL. Hughes, R.W., Hughes, E.B. and Manorotkul, W. (2020) Gem News International: lack star sapphire with dual treatments. Gems & Gemology, Vol. 56, No. 3, Fall, pp. 442–443; RWHL. Hughes, R.W. (2020) ...; Created on 27 February 2014

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