One electronically tested 14KT yellow gold ladies cast tanzanite and diamond ring with a bright polish finish. The featured tanzanite is set within two tiered diamond bezels supported by diamond set shoulders, completed by a three millimeter wide band. Identified with markings of "14K". Condition is new, good workmanship. Containing: One prong set marquise brilliant cut natural tanzanite, measuring 13.70 x 6.80 x 3.90mm, 6% bulge factor, approximate weight of 2.45ct., 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. 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. Eighty-Four prong and bezel set round brilliant cut diamonds, measuring 1.70 - 1.60 x 0.99mm (depth est.) approximate total weight of 84 Stones = 1.47ct. Graded in the setting. Clarity: SI-1 to I-1. Color: G - I. Total Weight of Colored Stones 2.45ct. Total Weight of Diamonds 1.47ct. Total Weight of Ring 7.20 grams. AIG Appraised at $11,170.00.