This is an authentic TIFFANY 18K Yellow Gold Diamond Out of Retirement Earrings. Revived from the 1970s Tiffany Blue Book, these earrings are crafted of 18 karat yellow gold and features a geometric motif accented with pave diamonds, approximately .28 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.