Buy Now: http://www.fascinatingdiamonds.com/ring_detail.php?id=2570. FDENS3008PRR Princess Diamond Engagement Rings In Swirl Prong Setting By Fascinating Diamonds. This 14 karat white gold swirl style rings set holds a princess Diamond center stone. 26 round diamonds are prong set on the ring. Also available in 18 karat and platinum 950.