17.40ct Tanzanite and 0.46ctw Diamond Platinum Ring (GIA CERTIFIED)

Auction #1892 | Item #99

Current Bid: $4,750

Appraised Value: $47,355

This lot is sold or expired.

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One electronically tested platinum ladies cast and assembled tanzanite and diamond ring. Condition is new, good workmanship. The ring features a tanzanite set within a diamond bezel, supported by an elaborate lattice under gallery and diamond set split shoulders, completed by a two millimeter wide band. Bright polish finish with milgrain detailing. Trademark is Orianne. Identified with markings of "PT950". Containing:

One prong set oval modified brilliant cut natural tanzanite, measuring 16.40 x 13.12 x 10.23mm, exact weight 17.40ct., 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. GIA Gemological Report attached. Graded loose prior to setting in the GIA Laboratory, Report #5172570528.

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, and 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.

Sixty-eight prong set round brilliant cut diamonds exact total weight 68 Stones = 0.46ct. The clarity grade reflects the entire range for this group. Graded in the setting.

Clarity VS-1 to SI-2

Color F - H

Total Weight of Colored Stones 17.40ct

Total Weight of Diamonds 0.46ct.

Total Weight of Ring 11.79 gm

SKU: 1123434