18KT White Gold GIA Certified 20.09ct Tanzanite and Diamond Ring A10420. New Condition! KU40091AN. One electronically tested 18KT white gold ladies cast tanzanite and diamond ring with a bright polish finish. Condition is new, good workmanship. The featured tanzanite is set within a two tiered diamond lattice gallery, supported by designer style shoulders and completed by a four millimeter wide band. Trademark is UCG. Identified with markings of "18K 750". Containing: One prong set oval modified brilliant cut natural tanzanite, measuring 18.00 x 13.97 x 10.66mm, exact weight 20.09ct., clarity is eye clean, type I, medium dark, moderately strong, violet color, (GIA V 6/4), cut is good. Transmitting light with no distortion, transparent. GIA Gemological Report attached. Graded loose prior to setting in the GIA Laboratory, Report # 2161211898.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. Forty prong set round brilliant cut diamonds, measuring 3.00 - 1.70 x 1.41mm (depth est.) approximate total weight of 40 Stones = 1.14ct. Graded in the setting. Clarity: VS-2 to SI-2 . Color: F - G. Total Weight of Colored Stones 20.09ct. Total Weight of Diamonds 1.14ct. Total Weight of Ring 13.30 grams. AIG Appraised at $63,115.00.

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