Uneek Precious Collection Halo Oval Blue Sapphire Engagement RingJazz up that petite, drama loving finger with this romantic bloom from Uneek's Royal Blue and Petals Collection, featuring a 2. 67 carat oval royal blue sapphire center embraced by an unabashedly feminine halo of 10 shared prong set round diamonds; 20 smaller rounds, graduating in size, line the tapered, delicate looking upper shank; this style can accommodate different center stone shapes cuts, available by special order.