Art Deco Platinum Three Stone Diamond RingArt Deco Old European cut Diamond Ring American, circa 1930. A classic antique ring. Three old European cut diamonds are set in a platinum setting, with additional French cut diamonds on the shoulders. The setting is a beautifully delicate rendition of a timeless design. The three main diamonds weigh approximately 2. 50 carats in total, G H color, and VS clarity. The center stone is approximately 1. 15 carats. Size 6. 25, can be resized.