Uneek Precious Collection 3-Stone-Halo Cushion Blue Sapphire Engagement RingElegant royal blue sapphire and diamond three stone engagement ring, handcrafted in glorious, featuring a 3. 37 carat cushion cut center flanked by 2 trap cut white diamonds (combined weight of 0. 30 carats), and accentuated by a total of 50 round brilliant cut diamonds pave set along the halo (only one halo surrounding all three main stones) and halfway down the shank; from Uneek's new Royal Blue Collection.