Antique Engagement Ring Art Deco .67 Old European Cut Diamond in PlatinumThis original antique art deco engagement ring features a . 67 old European cut diamond. The center diamond is held in place by four corner prongs which provide a square appearance to the stone. The outside of each prong has gorgeous chevron engraving that provides a beautiful texture. Three single cut diamonds accent each shoulder of the ring in a slight step design and add another layer of sparkle to an already glittering design. The top shoulders