Item #: 1400435 This is an authentic GUCCI Black Synthetic Corundum 18K Yellow Gold Interlocking G Band Ring size 56 or 7.75. The ring is crafted of black synthetic corundum and 18 karat yellow gold and features the engraved Gucci GG monogram logo engraved throughout the band. Follow this item for alerts. Gucci is a registered trademark of Gucci. FASHIONPHILE is not affiliated with Gucci.