One electronically tested 14KT white gold ladies cast tanzanite and diamond ring with a bright polish finish. The featured tanzanite is set within tiered diamond bezels, completed by a two and one-half millimeter wide band. Identified with markings of "K14". Condition is new, good workmanship. Containing: One prong set cushion mixed cut natural tanzanite, measuring 20.38 x 17.75 x 12.37mm, exact weight 43.23ct., clarity is eye clean, type I, dark, moderately strong, violetish blue color, (GIA vB 7/4), cut is good. Transmitting light with no distortion, transparent. GIA Gemological Report attached. Graded loose prior to setting in the GIA Laboratory, Report #2151735307.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-Eight prong set round brilliant cut diamonds, measuring 2.30 - 2.00 x 1.29mm (depth est.) approximate total weight of 68 Stones = 2.55ct. Graded in the setting. Clarity: VS-1 to SI-1. Color: G - I. Total Weight of Colored Stones 43.23ct. Total Weight of Diamonds 2.55ct. Total Weight of Ring 23.63 grams. AIG Appraised at $129,060.00.