925 sterling silver ring. Ring size - 18 mm Weight - 3,08g Tahitian Cultured Pearls 3/5 mm Tahitian cultured pearls are stunning, saltwater gems grown inside the black-lipped oyster (Pinctada margaritifera) native to French Polynesia. Revered as the only naturally dark pearls in the world, they symbolize mystery, wisdom, protection, and earned strength. See images for correct impression. Item will be shipped by registered mail with tracking number.