13.89ct Tanzanite and 0.73ctw Diamond Platinum Pendant/Necklace (GIA CERTIFIED)

Auction #2090 | Item #16

Current Bid: $7,000

Appraised Value: $38,950

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One electronically tested platinum ladies cast & assembled tanzanite and diamond pendant with chain. The pendant features a tanzanite set within a diamond bezel completed by a diamond set bail. The pendant is supported by an eighteen inch length platinum designer style chain, terminating in a lobster claw clasp. Bright polish finish. Trademark is Orianne. Identified with markings of "PT950". Condition is new, good workmanship Containing:

One prong set cushion modified brilliant cut natural tanzanite, measuring 16.07 x 11.07 x 9.82mm, exact weight 13.89ct., type I, medium dark, moderately strong Clarity is eye clean, medium dark, moderately strong, blue-violet color, (GIA BV 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 # 6167546786.


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-Six prong set round brilliant cut diamonds approximate total weight of 36 Stones = 0.73ct. Graded in the setting.

Clarity SI-1 to SI-2

Color F - H


Total Weight of Colored Stones 13.89 ct.

Total Weight of Diamonds 0.73 ct.

Total Weight of Pendant With Chain 18.37 gm

SKU: 1121545