Carolyn Pollack Sterling Silver Mother of Pearl Amethyst Bold Ring Genuine Mother of Pearl & Amethyst and .925 Sterling Silver Measures 3/4" L x 3/4" W See Ruler View for accurate sizing. Silver may tarnish over time. Handcrafted in America with lifetime warranty on all jewelry An oval-shaped, white mother of pearl cabochon is accented with amethyst cabochons on both sides.