Gem Labs

Describing Color in Gems • A Fool's Guide • Lotus Gemology Richard W. HughesLotus Gemology What is the finest blue, or the finest red? In truth, there...

Gems & Gemology SPRING 2023 - VOLUME 59, ISSUE 1 On a personal note, if nothing else, the images in this issue, especially in the Sapphire & Tucson...

GSI opens third lab in Mumbai Rebecca Butler - Professional Jeweller - One of the largest gemmological organisations in the world, Gemological Science International (GSI)...

Blackstone Acquires International Gemological Institute (IGI) Antwerp, May 21, 2023 – Blackstone (NYSE:BX) announced today that private equity funds managed by Blackstone (“Blackstone”) have acquired International...

$155,552,014! Auction Results Top Estimate, Even Before Day 2 Record Broken The anticipated auction results of $150 million for the private collection of Heidi Horten, Christie's...

Laboratory Color Nomenclature: Gemological Science or Marketing? It has been a while since I have written a personal note. But now here goes. The troubling conversation...

New Gemstone Testing & Research Lab CDC, BHU Banaras Hindu University (BHU), located on the southern edge of Varanasi, near the banks of the river...

GIA Live OnlineAdvanced Laboratory-Grown Diamonds LIVE ONLINE | July 18-19, 2023, 8 AM- 4 PM PT | Cost $995 | This seminar builds on GIA's...

Laboratory-Grown Diamonds vs. Synthetic Diamonds Q: What is the Difference between Laboratory-Grown Diamonds (aka Lab-Grown) Laboratory-Created Diamonds (aka Lab-Created) Factory Grown Diamonds Manmade Diamonds and Synthetic Diamonds? A: Absolutely nothing! They...

Press Release FROM MINE TO ROSTRUMSOTHEBY’S TO AUCTION ONE OF THE GREATEST GEM DISCOVERIES OF THE CENTURYAT 55.22 CARATS, THE RARE GEMSTONE IS THE LARGEST&...

New and additional criteria to detect low-T heated pink sapphires applied by SSEF In the Swiss Gemmological Institute SSEF's newsletter last week, new and additional...

AIGS Ramps Up Services in China: an Exclusive Interview with Gloria Chen, CEO of AIGS China by Julius Zheng "The operation of AIGS in China brings...