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4 days ago · Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry.
- My GIA
My Laboratory & GIA Laboratory Client Portal. Now featuring...
- Report Check
Report Check - The GIA Difference - GIA.edu
- Analysis & Grading
GIA is the world’s most trusted name in diamond grading and...
- Natural Diamonds
Diamond Origin Report. Full 4Cs assessment with a plotted...
- GIA Facetware
GIA Facetware ® is a free online service that allows you to...
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Mailing Address GIA World Headquarters The Robert Mouawad...
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- My GIA
4 days ago · GIA gives you the knowledge and practical skills to translate your love for gems and jewelry into a rewarding career. Gemology. Immerse yourself in the beauty and science of gems and fine jewelry. Jewelry. Acquire the gem and jewelry knowledge to successfully serve customers in the exciting retail world. Design.
4 days ago · GIA 4Cs Carat Weight. Diamonds and other gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the same weight as a paperclip. (Don’t confuse carat with karat, as in “18K gold,” which refers to gold purity.)
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1 day ago · GIA's D-to-Z color-grading system measures the degree of colorlessness by comparing a stone under controlled lighting and precise viewing conditions to masterstones of established color value. GIA's D-to-Z color-grading scale is the industry's most widely accepted grading system.
2 days ago · Use our unbiased search engine to search other options like thisGIA 1.02ct J SI1 Excellent Diamonds. The Rare Carat Report is your 'pocket gemologist'. Lookup any GIA certified diamond from any seller for a detailed analysis & diamond source verification.
2 days ago · GIA for lab-grown diamonds. Why is GIA better than IGI for natural diamonds? Bottom line recommendation. What is Lab Diamond Certification? A diamond certificate is a document from an objective third-party lab that describes a diamond and its characteristics.
3 days ago · Discover where your diamond comes from and learn more about GIA’s Diamond Origin Service. Educate your sales staff and customers on GIA’s science-based process to match the polished gemstone to its original rough diamond confirming the diamond’s country of origin.