Antique Engagement Ring Art Deco .93 Old European Cut Diamond in 14k White GoldThis original antique engagement ring was made in the Art Deco era. The glittering center stone is a . 93 carat Old European cut diamond. The diamond is secured in a classic six prong setting. The shoulders of this ring have a dimpled geometric pattern that leads to a high polished surface as the band wraps around the finger.