This is an authentic VAN CLEEF & ARPELS 18K Yellow Gold Black Onyx Diamond Vintage Alhambra Ring size 51 5.75. The ring is crafted of 18 karat yellow gold and features a clover shaped black onyx stone with a central diamond, approximately .06 carats. This is a beautiful ring with a classic style only from Van Cleef & Arpels! Follow this item for alerts. Van Cleef & Arpels is a registered trademark of Van Cleef & Arpels. FASHIONPHILE is not affiliated with Van Cleef & Arpels.