Yellow sapphires are not as well know as their dark blue counterparts, but their lovely pairing with diamonds in this u-setting eternity band could change that. U-prong settings developed from variations to the four prong setting, due to the need for a setting less likely to snag on clothing or other objects and better structured to enable more light to pass through the diamonds. This setting works by securely keeping the gem stones into place slightly above the base of the U. Our eternity diamond rings are available in 14 karat and 18k white, yellow, & rose gold or flawless .950 platinum. Select from an extensive range of total carat weights in stock for most styles, in GH/I1, GH/SI, and FG/VS color/clarity grades.