One electronically tested 14KT white gold ladies cast & assembled tanzanite and diamond pendant with chain. The pendant features a tanzanite set within an elaborate diamond gallery, completed by a diamond set bail. The pendant is supported by an eighteen inch length 14KT white gold designer style chain, terminating in a lobster claw clasp. Bright polish finish. Trademark is Orianne. Identified with markings of "14K". Condition is new, good workmanship. Containing: One prong set pear mixed cut natural tanzanite, measuring 11.00 x 11.00 x 6.20mm, approximate weight of 4.85ct., clarity is eye clean, type I, medium dark, very slightly grayish, violetish blue color, (GIA vB 6/3), 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. One Hundred Sixty-Eight prong set round brilliant cut diamonds approximate total weight of 168 Stones = 2.26ct. Graded in the setting. Clarity: I-1 to I-2. Color: H - J. Total Weight of Colored Stones 4.85ct. Total Weight of Diamonds 2.26ct. Total Weight of Pendant With Chain 10.83gm. AIG Appraised at $18,365.00.