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In 1953 the GIA developed its International Diamond Grading System and the "four Cs" (cut, clarity, color, and carat weight) as a standard to compare and evaluate the quality of diamonds. [ 2 ] As of 2024, the institute is headquartered in Carlsbad, California , and operates in 13 countries, with 11 campuses, 9 laboratories, and 4 research centers.
Gemological Institute of America (GIA) was the first laboratory in America to issue modern diamond reports, [33] and is held in high regard amongst gemologists for its consistent, conservative grading. Diamond High Council (HRD) Official certification laboratory of the Belgian diamond industry, located in Antwerp. [34]
Lab diamonds–once thought of as a more accessible alternative to natural diamonds–are getting increasingly bougie with new advances in technology.
In 1953, Liddicoat introduced the GIA diamond grading system - a practical approach to grading the quality of colorless to light yellow polished diamonds on the basis of color, clarity, and cut. A central feature was the D-to-Z color grading system for faceted colorless to light yellow diamonds—the vast majority of diamonds seen in the trade.
LONDON — Los Angeles-based jewelry label Vrai has been developing its lab-grown diamond collections since 2014, long before the conversation around the manmade stones — presented as ...
Diamond Foundry was founded in 2012 by Martin Roscheisen and Jeremy Scholz. [1] The company raised approximately $315 million in funding from various investors, including $200 million from Fidelity, Sun Microsystems and Google founding investor Andy Bechtolsheim, iPod co-creator Tony Fadell, eBay founding president Jeff Skoll, Twitter founder Evan Williams, Facebook co-founder Andrew McCollum ...
Diamond clarity is the quality of diamonds that relates to the existence and visual appearance of internal characteristics of a diamond called inclusions, and surface defects, called blemishes. Clarity is one of the four Cs of diamond grading, the others being carat , color , and cut .
An anthropomorphic diamond known as Pink Diamond is a member of the Great Diamond Authority in Steven Universe, which depicts the fallout of her death and the mystery behind it. In November 2020, an extremely rare purple-pink Russian 14.8-carat diamond, called " Spirit of The Rose [ ru ] ", sold at an auction in Switzerland for $26.6 million.
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