One electronically tested 14KT white gold ladies cast & assembled tanzanite and diamond necklace. Condition is new, good workmanship. Seventeen and three-quarter inch length necklace features an elaborate tanzanite and diamond floret pendant supported by a flexible diamond ribbon transitioning into matching white gold links, terminating in a concealed clasp with safety. Bright polish finish. Trademark is Orianne. Identified with markings of "14K". Containing: One prong set oval mixed cut natural tanzanite, measuring 13.75 x 10.85 x 6.75mm, approximate weight of 6.83ct., 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. Four hundred thirteen prong set round brilliant & baguette cut diamonds approximate total weight of 413 Stones = 6.52ctw. Graded in the setting Clarity SI1 to I1 Color G - I Total Weight of Colored Stones 6.83ct. Total Weight of Diamonds 6.52ctw. Total Weight of Necklace 30.16 gm Orianne |14K| Tanzanite NK008957