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4.88ct Tanzanite and 0.52ctw Diamonds Platinum Ring (GIA CERTIFIED)

Auction #1762 | Item #12

Current Bid: $2,000

Appraised Value: $15,570


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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 set within a diamond bezel, supported by a lattice under gallery and diamond set shoulders, completed by a two and one half millimeter wide band. Bright polish fmish with milgrain detailing. Trademark is Orianne. Identified with markings of "PT950". Containing:

One prong set cushion modified brilliant cut natural tanzanite, measuring 11.49 x 7.72 x 5.98mm, exact weight 4.88ct., type I Clarity is eye clean, medium dark, strong, blue-violet color, (GIA BV 6/5), cut is good. Transmitting light with no distortion, transparent. GIA Gemological Report attached. Graded loose prior to setting in the GIA Laboratory, Report #1172872529.

Tanzanite is a very rare gemstone that is only found in the country of Tanzania. Originally discovered in 1967. Tiffany and 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.

Thirty-two prong set round brilliant cut diamonds exact total weight 32 Stones = 0.52ctw. Graded in the setting.

Clarity SI-1 to SI-3

Color F - H

Total Weight of Colored Stones 4.88ct.

Total Weight of Diamonds 0.52ctw.

Total Weight of Ring 8.10 gm

SKU: 1123118