Engagement Ring Modern 3.37 Old European Cut Diamonds in 18k Yellow GoldThis modern custom engagement ring is a replica of an original Tiffany Studios (Pre Tiffany Co) three stone engagement ring. The center 1. 80 carat old European cut diamond is accented by a smaller . 82 and . 75 carat old European cut diamonds to each side. The three stones are bezel set into buttery 14k yellow gold, giving the ring a very low profile and comfortable feel on the finger. A truly magnificent antique style engagement ring!