☰
Close ×
  • Home
  • About
    • About Lotus
    • Our Staff
    • Gemology Lectures
    • Latest Lectures
    • Memberships
    • Thanks
    • Site Map
  • Reports
    • Report Lookup
    • Report Lookup Guide
    • Reports & Prices
    • Color Types
    • Enhancements
    • Testing FAQs
  • Resources
    • Articles
    • Books
    • Hyperion • Inclusion Search
    • Siamese Twins • Paired Images
    • Sherlock • Inclusion Research
    • 4 Treasures • Reference Database
    • Book/Instrument Reviews
    • Fine Images for Sale
    • Lotus Bibliography
  • Contact

Lotus Gemology Logo

  • Home
  • About
    • About Lotus
    • Our Staff
    • Gemology Lectures
    • Latest Lectures
    • Memberships
    • Thanks
    • Site Map
  • Reports
    • Report Lookup
    • Report Lookup Guide
    • Reports & Prices
    • Color Types
    • Enhancements
    • Testing FAQs
  • Resources
    • Articles
    • Books
    • Hyperion • Inclusion Search
    • Siamese Twins • Paired Images
    • Sherlock • Inclusion Research
    • 4 Treasures • Reference Database
    • Book/Instrument Reviews
    • Fine Images for Sale
    • Lotus Bibliography
  • Contact
    • REPORT VERIFICATION
    • SEARCH

The Latest Lectures from Lotus Gemology

Lectures from Lotus Gemology

The Latest Lectures from Lotus Gemology

Hyperion: Siamese Twins

Hyperion | Siamese Twins

Billie Hughes will share how patterns emerge when we study pairs and sets of inclusion photomicrographs.

Read more …

Describing Color in Gems | A Fool's Guide

Describing Color in Gems | A Fool's Guide

Color types such as "pigeon's blood," "cobalt blue" and "Santa Maria" are wildly popular, but also wildly inconsistent.

  • pigeon's blood
  • colored stone grading
  • CIE color space
  • color gamut
  • cobalt blue spinel
  • Paralba tourmaline
  • color types
  • royal blue
  • pigeon's blood ruby
  • royal blue sapphire
  • santa maria aquamarine

Read more …

Describing Color in Gems | A Fool's Guide

Describing Color in Gems | A Fool's Guide

Color types such as "pigeon's blood," "cobalt blue" and "Santa Maria" are wildly popular, but also wildly inconsistent.

  • colored stone grading
  • cobalt blue spinel
  • Paralba tourmaline
  • gem color types
  • pigeon's blood ruby
  • royal blue sapphire
  • santa maria aquamarine

Read more …

Madagascar Sapphire • Low-Temperature Heat Treatment Experiments

Madagascar Sapphire

Lotus Gemology's E. Billie Hughes will review key gemological features of Madagascar sapphire and how to detect heat treatment of this material.

  • sapphire
  • Madagascar sapphire
  • sapphire heat treatment

Read more …

Trick or Treatment • Detecting Enhancement in Ruby & Sapphire

Trick or Treatment

Lotus Gemology's E. Billie Hughes will review the major treatments of ruby and sapphire and how they can be identified.

Read more …

Richard Hughes examines the nomenclature of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Broken Bangle | The Blunder Besmirched History of Jade Nomenclature

Richard Hughes examines the nomenclature of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Read more …

Inside Out: Journey into the Center of a Gem

Inside Out | Journey into the Center of a Gem

Lotus Gemology's Billie Hughes takes participants on a journey to the fascinating inner world of gems.

Read more …

Welcome to Rubyland sign in Mogok, Myanmar

Welcome to Rubyland

Billie Hughes and Ann Lee take the audience on a journey through the world of rubies.

Read more …

Billie Hughes & Wim Vertriest report the results from their low-temperature heat treatment experiments on Burmese ruby.

A Canary in the Ruby Mine

Billie Hughes & Wim Vertriest report the results from their low-temperature heat treatment experiments on Burmese ruby.

Read more …

Inside Out: Journey into the Center of a Gem

Inside Out | Journey into the Center of a Gem

Lotus Gemology's Billie Hughes takes participants on a journey to the fascinating inner world of gems.

Read more …

Richard Hughes examines the nomenclature of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Broken Bangle | The Blunder Besmirched History of Jade Nomenclature

Richard Hughes examines the nomenclature of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

  • jade
  • jadeite
  • jade nomenclature
  • jade names
  • fei cui meaning
  • fei cui
  • fei cui jade

Read more …

Jade | China's Gift to the World

Jade | China's Gift to the World

Richard Hughes examines the historical sources of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

  • jade
  • Chinese nephrite
  • jade carving in China
  • Chinese nephrite carving
  • Chinese jade carving connoisseurship
  • fei cui jade

Read more …

Inside Out: Journey into the Center of a Gem

Inside Out | Journey into the Center of a Gem

Lotus Gemology's Billie Hughes takes participants on a journey to the fascinating inner world of gems.

Read more …

Richard Hughes examines the nomenclature of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Broken Bangle | The Blunder Besmirched History of Jade Nomenclature

Richard Hughes examines the nomenclature of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

  • jade
  • jadeite
  • jade nomenclature
  • jade names
  • fei cui meaning
  • fei cui
  • fei cui jade

Read more …

Trick or Treatment • Detecting Enhancement in Ruby & Sapphire

Trick or Treatment

Lotus Gemology's E. Billie Hughes will review the major treatments of ruby and sapphire and how they can be identified.

  • burmese ruby heat treatment
  • ruby oiling
  • ruby clarity enhancement
  • sapphire heat treatment

Read more …

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8

LOTUS GEMOLOGY CO. LTD.
Silom 19 Bldg,
Suite 411, 4th Fl.
45/1 Soi 19, Silom Rd
Bangkok 10500, Thailand

+66 (02) 117 3616
+66 (0)9 9229 8646

  • facebook
  • instagram
  • HOME PAGE

  • ABOUT LOTUS

  • CONTACT LOTUS

  • GEMOLOGY REPORTS
  • EDUCATIONAL ARTICLES
  • LOTUS LECTURES
  • IMAGES FOR PURCHASE
  • REPORT LOOKUP
  • HYPERION INCLUSION DATABASE
  • SHERLOCK INCLUSION RESEARCH
  • FOUR TREASURES REFERENCE DATABASE

  • Memberships  •  Privacy Policy  •  Site Map
    © 2013–2025 Lotus Gemology. All Rights Reserved.