6-carat Synthetic/Created Diamond Submitted with Natural Report & Laser Inscription
6-carat Synthetic/Created Diamond Submitted with Natural Report & Laser Inscription
Lab grown stone closely resembles GIA certified natural diamond
IGI Global (January 2, 2024) - The...
More Diamond Counterfeit Inscriptions Encountered: Test Everything to be Sure
More Counterfeit Diamond Inscriptions Encountered: Test Everything to be Sure
Gary RoskinRoskin Gem News Report
In their press release from Monday, December 18, 2023, Gem-Tech Istituto...
Bahrain Institute for Pearls and Gemstones Attains ISO Accreditation for Gemmological Services
Bahrain Institute for Pearls and Gemstones Attains ISO Accreditation for Gemmological Services
Press Release
The Bahrain Institute for Pearls and Gemstones (DANAT) has earned prestigious international...
GIA’s Colored Stone Origin Determination Seminar
GIA's Colored Stone Origin Determination Seminar
The Continuing Education division of GIA's Alumni Collective is now offering new self-paced continuing education seminars on Ruby, Sapphire,...
Colors K thru Z: Reading a GIA Diamond Grading Report
Colors K thru Z: Reading a GIA Diamond Grading Report
Gary RoskinRoskin Gem News Report
In looking through the Sotheby’s catalogue for November's Magnificent Jewels auction...
Magnificent Jewels Including the Bleu Royal
Magnificent Jewels Including the Bleu Royal
Gary RoskinRoskin Gem News Report
Christie’s Magnificent Jewels auction at the Four Seasons Hotel des Bergues in Geneva features a...
GIA Diving In: Adds ‘Hanadama’ Quality Range
Hanadama, the Grade for Top Quality Akoya Cultured Pearls
Gary Roskin - Roskin Gem News Report -
Hanadama, the Grade for Top Quality Akoya Cultured...
Sri Lanka or Madagascar? Blue Sapphire
Sri Lanka or Madagascar? Blue Sapphire
Lotus Gemology
Sri Lanka or Madagascar?
Many clients have asked why some of their blue sapphires get a Sri Lankan origin...
Sotheby’s Hong Kong: Magnificent?
Sotheby's Hong Kong: Magnificent?
"This Autumn Sotheby’s presents Magnificent Jewels I, featuring an exquisite collection of signed jewels, from an Art Deco Cartier Tutti Frutti...
Curious Details of GIA’s July Lab Staff Layoffs
Curious Details of GIA's July Lab Staff Layoffs
Gary RoskinRoskin Gem News Report
In late July, the Gemological Institute of America (GIA), one of the world’s...
Thai Gem Institute Elevates Standards in Collaboration with Chinese Lab [GIT & NGTC]
Thai Gem Institute Elevates Standards in Collaboration with Chinese Lab
Bangkok Post© Bangkok Post PCL
The Gem and Jewelry Institute of Thailand partners with China's...
37th International Gemmological Conference, IGC 2023 Japan
37th International Gemmological Conference, IGC 2023 Japan
37TH IGC CONFERENCE
IGC 2023: 23 -27 OCTOBER IN TOKYO, JAPAN
We, the members of IGC Japan Organizing Committee are...
