One electronically tested 18KT yellow gold ladies cast tanzanite and diamond ring with a bright polish finish. The featured tanzanite is set within a two tiered diamond lattice gallery, completed by a three millimeter wide band. Identified with markings of "K18". Condition is new, good workmanship. Containing: One prong set pear modified brilliant cut natural tanzanite, measuring 20.75 x 13.52 x 8.97mm, exact weight 17.41ct., clarity is eye clean, type I, medium dark, strong, violetish blue color, (GIA vB 6/5), cut is good. Transmitting light with no distortion, transparent. GIA Colored Stone Grading Report attached. Graded loose prior to setting in the GIA Laboratory, Report # 2151735648.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. Fifty-Three prong set round brilliant cut diamonds, measuring 2.40 - 2.30 x 1.41mm (depth est.) approximate. Total Weight of 53 Stones = 2.61ct. Graded in the setting. Clarity: SI-2 to I-1 . Color: G - I. Total Weight of Colored Stones 17.41ct. Total Weight of Diamonds 2.61ct. AIG Appraised at $59,000.00.

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