One electronically tested 18KT white gold ladies cast tanzanite & diamond ring with a bright finish. The featured tanzanite is set within a diamond bezel, supported by tapering diamond ribbons, completed by a two millimeter wide band. Trademark is Orianne. Identified with markings of "18K". Condition is new, good workmanship. Containing: One prong set pear brilliant cut natural tanzanite, measuring 14.00 x 10.00 x 7.50mm, approximate weight of 6.13ct., clarity is eye clean, type I, dark, moderately strong, blue color, (GIA B 7/4), 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-Six prong set rose cut diamonds approximate total weight of 66 Stones = 0.82ct. Graded in the setting. Clarity: SI-1 to I-1. Color: G - I. Total Weight of Colored Stones 6.13ct. Total Weight of Diamonds 0.82ct. Total Weight of Ring 6.29gm. AIG Appraised.

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