This is over half ounce. Great ring and circa 1940s...One of a kind find. Stone: Pink Diamond & Diamond. Gram Weight: 15.2 grams. The item "Antique 1940s 3ct Genuine PINK Diamond Platinum Wedding Band Ring 15g HEAVY" is in sale since Monday, November 21, 2016. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Diamond". The seller is "oldtreasures333" and is located in American Fork, Utah. This item can be shipped worldwide.