One electronically tested 14KT white gold ladies cast tanzanite and diamond ring with a bright polish finish. The featured tanzanite is set within a diamond bezel, completed by a two and one-half millimeter wide band. Identified with markings of "14K". Condition is new, good workmanship. Containing: One prong set oval mixed cut natural tanzanite, measuring 9.25 x 7.50 x 4.75mm, 6% bulge factor, approximate weight of 2.37ct., clarity is eye clean, type I, medium dark, very slightly grayish, bluish violet color, (GIA bV 6/3), 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. Sixteen prong set round brilliant cut diamonds, measuring 2.10 - 2.00 x 1.23mm (depth est.) approximate total weight of 16 Stones = 0.60ct. Graded in the setting. Clarity: SI-2 to I-1. Color: H - J. Total Weight of Colored Stones 2.37ct. Total Weight of Diamonds 0.60ct. Total Weight of Ring 5.13 grams. AIG Appraised at $7,730.00.