One electronically tested 14KT white gold ladies cast & assembled tanzanite & diamond ring. Condition is new, good workmanship. The featured tanzanite is set within a tiered diamond bezel, supported by an elaborate lattice under gallery and diamond set shoulders, completed by a one millimeter wide band. Bright polish finish. Trademark is Orianne. Identified with markings of "14K". Containing: One prong set pear mixed cut natural tanzanite, measuring 17.50 x 11.50 x 4.80mm, approximate weight of 7.04ct., 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. Colored Stone Grading Report attached. 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-eight prong set round brilliant cut diamonds approximate total weight of 88 Stones = 1.09ctw. Graded in the setting. Clarity SI2 to I2 Color F - H Total Weight of Colored Stones 7.04ct. Total Weight of Diamonds 1.09ctw. Total Weight of Ring 8.30 gm