6.93ct DARK Tanzanite and 0.97ctw Diamond Platinum Ring (GIA CERTIFIED)

Auction #1868 | Item #136

Current Bid: $3,000

Appraised Value: $22,225

This lot is sold or expired.

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One electronically tested platinum ladies cast tanzanite and diamond ring with a bright polish finish. Condition is new, good workmanship. The featured tanzanite is set within a diamond bezel supported by stylized diamond set shoulders, completed by a two and one-half millimeter wide band. Trademark is Orianne. Identified with markings of "PT950". Containing:

One prong set cushion modified brilliant cut natural tanzanite, measuring 12.68 x 10.37 x 6.80mm, exact weight 6.93ct., clarity is eye clean, type I, dark, very slightly grayish, violetish blue color, (GIA vB 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 #5172379296.

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.

Thirty-eight prong set round brilliant cut diamonds approximate total weight of 38 Stones = 0.97ct. Graded in the setting.

Clarity VS-1 to VS-2

Color D-F

Total Weight of Colored Stones 6.93ct.

Total Weight of Diamonds 0.97ct.

Total Weight of Ring 8.82 gm

SKU: 1121836