SOLID Platinum 2.31CTW Genuine Diamond Ring W/1.51CTW GIA Certified VS1/F Center Diamond - The setting is made of solid platinum. The center diamond is 1.51CT VS1/F, and comes with a GIA certificate (#12586686). The side accent diamonds are trillion-cut and are approximately 0.40CT each. Ring size: 6. (5.2 grams) THE GIA CERTIFICATE IS INCLUDED WITH THIS LOT.