Bvlgari Gold Mother of Pearl Optical Ring at 1stDibs 18 Karat Gold, Onyx and Mother of Pearl Vintage Geometric Ring Italian Italian Mother of Pearl, CZ Flower Ring in Gold Over Sterling Pearl Bulgari Mother of Pearl Gold Ring at 1stdibs. Large Flat Round Center Mother Of Pearl Stone With Greek Design Accents Border Ring. Center Mother Of Pearl Stone. Greek Design Accents Pattern Border. Yellow Gold Tone & Plating. Item # 2 200 072 20 MOP Wholesale 11. 90