Platinum filigree is so rare and hard to find. Diamonds all around the sides and approx. Circa 1920s and almost 100 years old. RARE find and one of a kind piece.Gram Weight: 4.2 grams. The item "Antique 1920s $12,000 2.50ct Old Euro Diamond Platinum Filigree Band Ring RARE" is in sale since Thursday, September 29, 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.