Watermelon Tourmaline, Diamond, 18k White Gold Pendant Necklace. Featuring one distorted pear shaped faceted-top watermelon tourmaline weighing 52.60 cts., accented by one rose-cut diamond weighing 0.24 ct., further enhanced by single-cut and full-cut diamonds weighing a total of approximately 0.53 cttw., set in an 18k white gold pendant enhancer mounting measuring approximately 60 x 34 mm, suspended from an 18k white gold three strand chain, forming a 19 1/2 inch necklace. {Gross Weight: 13.3 dwts}