Antique Engagement Ring Art Deco .30 Old European Cut Diamond in 18k White GoldThis original antique Art Deco diamond engagement ring is elegant, simple and brilliant. The . 30 carat old European cut diamond is set in an exquisite filigree mounting with delicate engraving cascading down the shoulders of the ring. To each side, a bright trilliant cut sapphire is bezel set with fine milgrain edge work which accents the other single cut diamonds set into the shoulders of the ring. A timeless beautiful Art Deco design.