Uneek Natureal Collection 3-Stone-Halo Oval Fancy Yellow Diamond Engagement RingWe love canary diamonds, especially when they are oval shaped; and the 4. 02 carat center stone of this three stone ring is just too perfect for words; 25 round diamonds form a halo around the glorious center, and 12 more line the upper shank (6 on each side); 2 trapezoid cut sidestones give the ring a chic, ultra modern look; from Uneek's Natureal Collection.