9.32ct DARK Tanzanite and 1.54ctw Diamond 18KT White Gold Ring (GIA CERTIFIED)

Auction #2184 | Item #32

Current Bid: $4,500

Appraised Value: $27,180

This lot is sold or expired.

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One electronically tested 18KT white gold ladies cast tanzanite and diamond ring with a bright polish finish. The featured tanzanite is set within a diamond bezel supported by an elaborate diamond set under gallery and diamond set split shoulders, completed by a two and one-half millimeter wide band. Trademark is Orianne. Identified with markings of "18K". Condition is new, good workmanship.


One prong set cushion modified brilliant cut natural tanzanite, measuring 12.49 x 12.26 x 6.96mm, exact weight 9.32ct., clarity is eye clean, type I, dark, very slightly grayish, bluish violet color, (GIA bV 7/3), cut is good. Transmitting light with no distortion, transparent. GIA Gemological Report attached. Graded loose prior to setting in the GIA Laboratory, Report #2171043963.


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 prong, channel and bezel set round brilliant & baguette cut diamonds approximate total weight of 80 Stones = 1.54ct. Graded in the setting.

Clarity          SI-1 to I-1   

Color            H - J

SKU: 114933