Here is a Fine Platinum Round Cut Diamond Engagement Ring. Made from Solid Platinum and weighs 6.4 grams. It holds 1 Natural Round Brilliant Diamond that is .35Ct F Color VVS2 Clarity which is surrounded by .30Ct Natural Diamonds. Set is currently a size 5.25 which can be sized for FREE Upon request. Hallmarked PT9500. Across the center top it is 6.5mm wide.