Uneek Cushion-Shaped Diamond Halo Engagement Ring with Infinity-Style Crisscross ShankFans of the cushion shape will love this cushion diamond on cushion halo engagement ring from Uneek's Infinity Collection; designed to fit a 6. 0 mm center, it features an infinity style criss cross double shank, with diamonds U pave set down only one stroke of the infinity shank, leaving the other stroke stoneless but no less lustrous; 16 round brilliants adorn the halo, while 18 slightly larger rounds line adorn the shank (combined weight of 0. 33