Shop › Double drop natural Tahitian pearl necklace Image 1 of 3 Image 2 of 3 Image 3 of 3 Double drop natural Tahitian pearl necklace $275.00 Sterling silver, 10.2mm pearl, 15in necklace (2in adjustable), 7.4grams. Add To Cart Added! Sterling silver, 10.2mm pearl, 15in necklace (2in adjustable), 7.4grams.