A Wonderful Vintage 12mm Majorca Pearl Ring in Sterling Silver, Black White South Sea Look. This beautiful estate ring has the hallmark for the Majorca pearl company as well as being marked for sterling silver. It holds two quality Majorca pearls that are about 12mm in diameter and are done in black and white south sea coloration. Majorca pearls are made of organic components such as mother of pearl, thus their beautiful luster. Overall the ring measures about 1 inch long by about 7/8 inch wide from side to side. Ring Size: about 9 1/2. This ring was acquired through an estate collection and is in lovely vintage condition.