5.81ct Tanzanite and 10.16ctw Diamond 18K White Gold Necklace

Auction #2214 | Item #324

Current Bid: $8,000

Appraised Value: $46,385

This lot is sold or expired.

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One electronically tested 18KT white gold ladies cast & assembled tanzanite and diamond necklace with a bright polish finish. Condition is new, good workmanship. Sixteen and one-quarter inch length necklace features a tanzanite and diamond floret pendant supported by a flexible stylized diamond ribbon, terminating in a concealed clasp with safety. Identified with markings of "750". Containing:


One prong set oval mixed cut natural tanzanite, measuring 12.20 x 9.75 x 6.20mm, 15% bulge factor, approximate weight of 5.81ct., 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. Colored Stone Grading Report attached. 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.


Five hundred eighty prong set round brilliant cut diamonds, measuring 2.30 - 1.50 x 1.14mm (depth est.) approximate total weight of Jtiu Stones = lli. oct. urradeti

Clarity SI-1 to I-1

Color G - I


Total Weight of Colored Stones 5.81ct.

Total Weight of Diamonds 10.16ct.

Total Weight of Necklace 21.27 gm

SKU: 1121668