Vintage Oscar Heyman Ruby Diamond Ring Platinum Rare Platinum Signed Certified. The item "Vintage Oscar Heyman Ruby Diamond Ring Platinum Rare Platinum Signed Certified" is in sale since Sunday, April 12, 2020. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Gemstone". The seller is "luxbuysell" and is located in Sausalito, California. This item can be shipped to United States.