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 millimeter wide band. Identified with markings of "14K". Condition is new, good workmanship. Containing: One prong set rectangular cushion mixed cut natural tanzanite, measuring 10.60 x 8.70 x 5.00mm, 4%. bulge factor, approximate weight of 3.78ct., 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. Fourteen prong set round brilliant cut diamonds, measuring 2.50 - 2.50 x 1.50mm (depth est.) approximate. Total Weight of 14 Stones = 0.85ct. The clarity grade reflects the entire range of clarity for this group. Graded in the setting. Clarity: SI-1 to I-2. Color: G - H. Total Weight of Colored Stones 3.78ct. Total Weight of Diamonds 0.85ct. Total Weight of Ring 6.00gm. AIG Appraised at $11,250.00.