Square Cut Sapphire & RBC Diamond Wedding Band PlatinumThis platinum eternity band alternates between square cut blue sapphires and round brilliant cut diamonds in a channel setting that wraps completely around the ring. The sapphires total . 72 carats and provide deep blue color, while the . 45 carats of diamonds add bright white contrast and sparkle. The square sapphires create clean geometric lines, and the round brilliant diamonds between them produce maximum light return with their faceting. The