18KT White Gold GIA Certified 25.57ct Tanzanite and Diamond Ring

Currency:USD Category:Jewelry / Fine Jewelry Start Price:23,000.00 USD Estimated At:53,550.00 - 71,365.00 USD
18KT White Gold GIA Certified 25.57ct Tanzanite and Diamond Ring
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One electronically tested 18KT white gold ladies cast tanzanite and diamond ring with a bright polish finish. Condition is new, good workmanship. The featured tanzanite is set within a diamond bezel supported by tapering woven diamond accented shoulders, completed by a five and one-half millimeter wide band. Identified with markings of "18K 750". Containing: One prong set oval modified brilliant cut natural tanzanite, measuring 21.54 x 15.94 x 10.65mm, exact weight 25.57ct., type I Clarity is slightly included, dark, moderately strong, violet-blue color, (GIA VB), cut is good. Transmitting light with no distortion, transparent. GIA Gemological Report attached. Graded loose prior to setting in the GIA Laboratory, Report #2161211975. 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. Sixty-Six prong set round brilliant cut diamonds, measuring 1.80 - 1.30 x 0.93mm (depth est.) approximate total weight of 66 Stones = 1.00ct. Graded in the setting. Clarity: VS-2 to SI-2 . Color: G - I. Total Weight of Colored Stones 25.57ct. Total Weight of Diamonds 1.00ct. Total Weight of Ring 18.54 grams. AIGAppraised at $71,365.00.