South Sea Pearl Necklace cultured in Tahiti, strung in black silk thread individually to avoid rubbing of the pearls, with a gold clasp. Pearl Luster makes purchasing pearls simple and easy by offering only the industry's highest quality pearls at the lowest possible price.. Please Lustre pearls are inspected by our Gemologists, with over 30 years of experience. All pearls have beauty makes, which shows natural beauty, which make the pearl genuine. Have good luster, and that the shape, color, and sizes of the pearls match as best as possible. Since no two pearls are alike.