One electronically tested 18KT White Gold ladies cast tanzanite and diamond ring with a bright polish finish. The featured tanzanite is supported by elaborate diamond set shoulders, completed by a grooved three millimeter wide band. Identified with markings of "18K 750". Condition is new, good workmanship. Containing: One prong set round brilliant cut natural tanzanite, measuring 7.10 - 7.05 x 4.40 mm, 8% bulge factor, approximate weight of 1.60ct., clarity is eye clean, type I, dark, very slightly grayish, violetish blue color, (GIA vB 7/3), cut is good. Transmitting light with no distortion, transparent. Graded in the setting. Tanzanite is a very rare gemstone that is only found in the country of Tanzania. Originally discovered in 1967. Tiffany & Company, named the stone Tanzanite. It is found in the Usumburu Mountains that border the Umba Valley of northern Tanzania. Tanzanite occurs in gray, brown, violet, blue, reddish-purple, & green. The gem is interesting because of its exceptional pleochroism. Rotated in different directions a tanzanite will exhibit multiple changes of color. Tanzanite has a low tolerance to ultrasonic cleaning, and should not be cleaned using this method. Sixty-Two prong and channel set round brilliant cut diamonds approximate total weight of 62 Stones = 1.13ct. Graded in the setting. Clarity: VS-1 to SI-1. Color: H - J. Total Weight of Colored Stones 1.60ct. Total Weight of Diamonds 1.13ct. Total Weight of Ring 5.58 grams. AIG Appraised at $8,380.00.

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