5.79ct Tanzanite and 0.32ctw Diamond Platinum Ring (GIA CERTIFIED)

Auction #1822 | Item #171

Current Bid: $1,750

Appraised Value: $17,640


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Description

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

One prong set cushion modified brilliant cut natural tanzanite, measuring 14.74 x 7.75 x 5.15mm, exact weight 5.79ct., type I, medium dark, moderately strong Clarity is eye clean, medium dark, very moderately strong, violet-blue color, (GIA VB 6/4), cut is good. Transmitting light with no distortion, transparent. GIA Gemological Report attached. Graded loose prior to setting in the GIA Laboratory, Report #5171871978.

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.

Twenty-four prong set round brilliant cut diamonds exact total weight 24 Stones = 0.32ctw. Graded in the setting.

Clarity SI-1 to SI-2

Color G - H

Total Weight of Colored Stones 5.79ct.

Total Weight of Diamonds 0.32ctw.

Total Weight of Ring 9.10 gm

SKU: 1123918