One electronically tested 18KT white gold ladies cast tanzanite and diamond ring. The featured tanzanite is set within a diamond floret supported by diamond set split shoulders, completed by a two and one-half millimeter wide band. Bright polish finish with milgrain detailing. Trademark is UCG. Identified with markings of "18K 750". Condition is new, good workmanship. Containing: One prong set oval mixed cut natural tanzanite, measuring 15.70 x 11.70 x 8.60mm, approximate weight of 12.01ct., clarity is eye clean, type I, medium dark, very slightly grayish, violetish blue color, (GIA vB 6/3), cut is good. Transmitting light with no distortion, transparent. Colored Stone Grading Report attached. 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 set round brilliant cut diamonds approximate total weight of 62 Stones = 1.16ct. Graded in the setting. Clarity: SI-1 to SI-2. Color: E - G. Total Weight of Colored Stones 12.01ct. Total Weight of Diamonds 1.16ct. Total Weight of Ring 9.51gm. AIG Appraised.

As-Is