The vibrant contrast of diamonds and rubies in this u-shaped eternity style makes it stand out as a great choice for an anniversary or Valentine's day gift. U-shape settings grew out of variations to the 4 prong setting, due to the need for a setting less likely to snag on clothing or other objects and better designed to enable more light to pass through the gems. This setting works by securely keeping the stones in place slightly above the bottom of the U. Our eternity wedding rings are available in 14kt & 18kt white, yellow, & rose gold or immaculate .950 platinum. Choose from a diverse range of carat weights in stock in most styles, in GH/I1, GH/SI, & FG/VS color/clarity.