One electronically tested 14KT white gold ladies cast tanzanite and diamond ring with a bright polish finish. The featured tanzanite is set within a tiered diamond floret supported by a lattice under gallery, completed by a two millimeter wide band. Identified with markings of 'K14'. Condition is new, good workmanship. Containing: One prong set pear mixed cut natural tanzanite, measuring 17.50 x 11.20 x 8.30mm, approximate weight of 10.90ct., clarity is eye clean, type I, medium, very slightly grayish, bluish violet color, (GIA bV 5/3), 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. Twenty-One prong set round brilliant cut diamonds, measuring 2.70 - 2.60 x 1.59mm (depth est.) approximate total weight of 21 Stones = 1.48ct. Graded in the setting. Clarity SI-2 to I-2. Color: F - H Twenty prong set round brilliant cut diamonds, measuring 2.20 - 2.20 x 1.32mm (depth est.) approximate total weight of 20 Stones = 0.83ct. Graded in the setting. Clarity SI-2 to I-2. Color: F - H. Total Weight of Colored Stones 10.90ct.. Total Weight of Diamonds 2.31ct.. Total Weight of Ring 12.73gm. AIG Appraised at $30,200.00.