Uneek Primavera Round Diamond Halo Engagement Ring with Pave Crisscross Shank and Under-the-Head FiligreeRound diamond on round halo engagement ring, designed to fit a 1 carat center, with 18 round brilliants U pave set along the halo, and 54 more along the crisscross upper shank; this style features a floral filigree design cascading under the head, and two "surprise diamonds" embedded in the filigree; from Uneek's Amore Collection; this style can accommodate a range of center stone sizes (beginning at 0. 50 carats), available by special order.