Diamonds: 1.00 carat total weight, 32 round Old European cut diamonds. Width: almost 1/8 inch, 2.5 mm.Stamp: No stamp - It acid tests platinum. We will provide an appraisal upon request, by our GIA Graduate Gemologist, at the retail value. Our store: Schafer Jewelers was founded in 1988 as a "brick and mortar" fine jewelry store located in Florida. We respond to emails 7 days a week. All items must be in original condition, unaltered, not sized and not shortened. Sizing and shortening: We can quickly size or shorten your item, for a small charge. Once altered, we do not want to accept a return. Condition of our Estate, Antique and Pre-owned Jewelry: All items are professionally cleaned and polished if needed. If there are any significant imperfections, we will disclose them. The item "Vintage Antique Platinum 1.00 carat Diamond Eternity Ring Old European Size 8.5" is in sale since Tuesday, August 10, 2021. This item is in the category "Jewelry & Watches\Fine Jewelry\Rings". The seller is "schaferjewelers" and is located in Miami, Florida. This item can be shipped worldwide.