This engagement ring is pure platinum and weighs 7.37 grams. The center diamond is a natural cushion cut and weighs .81 carat.The color is G and the clarity is SI1. The polish is Excellent and symmetry is Very Good. The GIA Lab Certification 6147616025 and is inscribed on the girdle of the diamond. The ring holds ninety four (94) round brilliant diamonds set in a shared prong setting. The total weight of the side diamonds is .61 carat. They are G color and are of SI clarity.