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® is a nonprofit institute dedicated to ensuring the public trust in gems and jewelry. As the trusted authority on diamonds, colored stones, and pearls, GIA. Diamond Shape: Round Brilliant. Thickness of Center of the Face of Ring: 7.7 mm.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.