This is an authentic VAN CLEEF & ARPELS 18K Yellow Gold Black Onyx Diamond Vintage Alhambra Ring 47 4. This classic ring is 18 karat yellow gold with black onyx in the shape of a clover with a diamond. This is a radiant ring with the 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.