14K Natural Sapphire & Diamond Halo RingMaster Piece Custom Designedby Le Vive Natural Saphire 11x9 mm 4CT, Shared prong set halo and double strand on shoulders set with natural round diamonds 0. 58 ctw, SIZABLE. Precious Metal 18k Yellow Gold Center Stone Info: Type Saphire Cut Oval Color Blue Carat 4. 0 Side Diamonds Info: Cut N A Clarity N A Color N A Carat 0. 72 ct tw Total Carat Weight All gemstone carat weights (ct. t. w.), when mentioned, are approximate;