Platinum Diamond Three-Stone Halo Engagement Ring from the "Petite Crescent RoyalT" Collection.. 0.96 Cttw. G Color, VS Clarity Average Accent Diamonds. 0.65 Cttw. Sapphires. Shown in Finger Size 6.5 With 10 x 7.5 MM Oval Shape Center for Scale. Center Not Included in Price. Price Will Vary With Size of Center Stone, Finger Size and Metal Type.