Vintage 3 Carat Asscher Cut Diamond Engagement Ring in Platinum.  This incredible Art Deco engagement ring features a GIA certified 3 carat Asscher cut diamond set in platinum. The spectacular center diamond is set with four (4) flat prongs on each corner and accented by round and baguette cut diamonds. The classic style of the mounting and accent diamonds are a wonderful addition to this amazing center stone and complete this truly special vintage ring.