Unique 18K White Gold Diamond Gemstone Tahitian Pearl Pendant Necklace. From top to bottom this beautiful piece features a natural oval cut amethyst measuring 7mm by 8mm, a dark Tahitian pearl measuring half of inch in diameter, a cabochon garnet, blue topaz, amethyst, and peridot in descending size, one brilliant round diamond weighing 0.19 carats and one more natural pearl at the bottom measuring 9/16 of an inch in diameter. The necklace portion is almost 16 inches long with the pendant dropping down about 3 inches. The piece weighs 16.4 grams.