See Gem As
Tools
Research
Inside De Beers’ Lightbox Diamonds
GIA researcher analyzes and confirms that De Beers’ Lightbox diamonds are grown using the chemical vapor deposition process.
The Very Deep Origin of the World’s Biggest Diamonds
Explores an exceptional family of diamonds, referred to as “CLIPPIR” (Cullinan-like, Large, Inclusion-Poor, Pure, Irregular, and Resorbed), that formed in a superdeep environment.
The Unexpected Origins of Big Diamonds
Dr. Evan Smith, Ph.D., GIA research scientist, shares his findings on the unexpected origins of big diamonds and what their characteristics tell us about the earth.
The Latest on Synthetic Diamonds
Dr. James Shigley, GIA distinguished research fellow, is one of the foremost experts in diamonds and their identification. In this presentation recorded at the 2017 JCK Las Vegas show, he shares the latest developments about HPHT and CVD synthetic diamond
Carbonado Diamond: A Review of Properties and Origin
Presents a detailed examination of about 800 samples of carbonado diamond from Brazil and the Central African Republic, including possible models for its genesis.
Photoluminescence Mapping of Optical Defects in HPHT Synthetic Diamond
Demonstrates the importance of this method in identifying diamond treatments, based on the
analysis of PL maps acquired from a brownish orange HPHT synthetic diamond.
Diamond with Unusual Fluorescence Distribution
A submission to the New York lab yields an unexpected reaction to long-wave UV radiation.
2017 Las Vegas Trade Spotty, Designers and Diamonds Lead
Designers respond to market trends, demand for diamonds better than expected. Plus: Holiday season diamond marketing campaign gets funding boost.
2017 Vegas Outlook: Decent, But Cautious, Buying
Buyers at the 2017 JCK Show will likely stick to their open-to-buy plans, but take few chances on new lines or extra stock. Plus: An overview of retail sales, auction headlines.
Historical Reading List: The Diamond Fields of South Africa: Part 2 (1893-2014)
Within a few years of their discovery, the diamonds deposits of South Africa produced more diamonds than what had come from India in two millennia.
Luxury Firms Adjust to the Era of Diminished Opulence
Baselworld 2017: Luxury jewelry designers rethinking blingy, gem-laden looks for more artistic designs. Pink Star diamond sells for $71 million.
US Retailers Continue to Cite ‘Challenging’ Environment, Synthetic Melee Detected
Economists recognize that the decline in middle class purchasing power is directly affecting some consumer products – including jewelry.
