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 bezel, completed by a three millimeter wide band. Identified with markings of "K14". Condition is new, good workmanship. Containing: One prong set cushion mixed cut natural tanzanite, measuring 20.94 x 15.15 x 9.77mm, exact weight 26.74ct., type I Clarity is eye clean, dark, moderately strong, blue-violet color, (GIA BV), cut is good. Transmitting light with no distortion, transparent. GIA Gemological Report attached. Graded loose prior to setting in the GIA Laboratory, Report #1156962402. 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-Four prong set round brilliant cut diamonds, measuring 2.40 - 2.20 x 1.38mm (depth est.) approximate total weight of 64 Stones = 2.94ct. Graded in the setting. Clarity: VS-1 to VS-2. Color: H - J. Total Weight of Colored Stones 26.74ct. Total Weight of Diamonds 2.94ct. Total Weight of Ring 16.57 grams. AIG Appraised at $80,485.00.