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News & Knowledge
4/24/24
Labs and the Trade: Alternate Viewpoint, Same Goals
Exploring the Dichotomy: Gemological Precision vs. Market Aesthetics in Evaluating Rubies
12/26/23
TGJTA and GJPCT Launches Standard Colorstone Price Guide
GJPCT and TGJTA, in collaboration with GAC and NGTC has recently launched a standard colorstone price guide in an effort to promote transparency and fairness in the gem and jewelry industry.
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