Item #: 161632 This is an authenticTIFFANY & CO 18K Rose Gold Black Diamond Pendant Necklace. This beautiful neck piece is made of 18 karat yellow gold and features a black diamond pendant with a one of a kind look only from Tiffany & Co! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.