4.29ct Tanzanite and 1.00ctw Diamond Platinum Ring

Auction #1820 | Item #106

Current Bid: $1,100

Appraised Value: $15,350

This lot is sold or expired.

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One electronically tested platinum ladies cast tanzanite & diamond ring. Condition is new, good workmanship. The featured tanzanite is set within a diamond bezel, supported by a diamond set shoulders, completed by a two millimeter wide band. Bright polish finish. Trademark is Orianne. Identified with markings of "PT 950". Containing:

One prong set oval mixed cut natural tanzanite, measuring 10.90 x 9.00 x 6.50mm, approximate weight of 4.29ct., clarity is eye clean, type I, medium dark, strong, bluish violet color, (GIA bV 6/5), cut is good. Transmitting light with a minimum of distortion, transparent. Naturally occurring internal & external characteristics are present.Graded in the setting.

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.

Forty-four prong set round brilliant cut diamonds, measuring 2.30 - 1.30 x 1.08mm (depth est.) approximate total weight of 44 Stones = 1.00ctw. Graded in the setting.

Clarity VS-1 to VS-2

Color G - H

Total Weight of Colored Stones 4.29ct.

Total Weight of Diamonds 1.00ctw.

Total Weight of Ring 6.99 gm

SKU: 1123580