Margot McKinney Jewelry pearl cocktail ring. Polished 18-karat white gold band and settings. Naturally hued Australian South Sea cultured pearl. Oval face with pearl center and mixed stone pavé. Pavé blue sapphires and white diamonds. 6. 71 total blue sapphire carat weight. 1. 56 total diamond carat weight. Pearl dimensions: approx. 16. 8mm. Tapered, half-round shank.