Item #: 1345206 This is an authentic TIFFANY 18K Yellow Gold Blue Sapphire 4mm Band Ring size 54 or 6.75. The ring is crafted of 18-karat yellow gold and features channel-set princess cut blue sapphires on a tapered band. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.