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One electronically tested 18KT white gold ladies cast Tahitian cultured pearl & diamond ring. Condition is new, good workmanship. The featured tahitian cultured pearl is set within a tiered diamond bezel, supported by an elaborate lattice under gallery and diamond set shoulders, completed by a two millimeter wide band. Bright polish finish. Trademark is Orianne. Identified with markings of "18K". Containing:
One tahitian cultured pearl, 12.5mm in size. The pearl is black in color with a good luster, round, mostly clean Graded in the setting.
Tahitian cultured pearls form in the large "Black Lipped" Pinctada Margaritifera oyster, which is about twice the size of the Japanese Akoya oyster. This warm water species from across the central and South Pacific Ocean is at home in the bays and lagoons of the islands & atolls of French Polynesia. Tahitian cultured pearl farmers generally raise their oysters in lagoons.
Tahitian cultured pearls take from two to four years to form. Black pearls are known for their iridescent, vibrant, almost metallic natural colors, unique among saltwater cultured pearls. Though commonly called "Tahitian" pearls, they are actually gray, to a lighter or darker degree. Tahitian pearls have the unique ability to display a variety of colors at the same time, which can be seen glistening on their surface.
Eighty-two bead set round brilliant cut diamonds, measuring 1.10 - 1.00 x 0.68mm (depth est.) approximate total weight of 82 Stones = 0.45ct. Graded in the setting.
Clarity I-1 to I-2
Color F - H
Total Weight of Diamonds 0.45ct.
Total Weight of Ring 7.96 gm