One electronically tested 14KT white gold ladies cast tanzanite & diamond ring with a bright finish. Condition is new, good workmanship. The featured tanzanite is set within a tiered diamond bezel, supported by a diamond set ribbed under gallery and diamond set shoulders, completed by a two millimeter wide band. Trademark is Orianne. Identified with markings of "14K". Containing: One prong set square cushion mixed cut natural tanzanite, measuring 8.00 x 8.00 x 5.43mm, approximate weight of 2.73ct., clarity is eye clean, type I, dark, slightly grayish, bluish violet color, (GIA bV 7/2), 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. Two hundred nine prong set round brilliant cut diamonds (depth est.) approximate total weight of 209 Stones = 1.13ct. Graded in the setting. Clarity I-I to 1-2 Color H - J Total Weight of Colored Stones: 2.73ct. Total Weight of Diamonds: 1.13ct. Total Weight of Ring: 4.63 gm Size: 7