SILVER 3.80ct Tanzanite and Topaz Ring SLV492. New Condition! NP501FB. One electronically tested 925 ladies cast tanzanite and white topaz ring with a bright polish finish. The featured tanzanite is supported by white topaz set shoulders and completed by a two and one-half millimeter wide band. Identified with markings of "925". Condition is new, good workmanship. Containing: One prong set square cabochon cut natural tanzanite, measuring 9.10 x 8.70 x 5.30mm, approximate weight of 3.80ct, clarity is heavily included, type I, medium, very slightly grayish, violet color, (GIA V 5/3), cut is good. Transmitting light somewhat diffusely, translucent. 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 umburu 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. Twelve prong set round brilliant cut natural white topazes, measuring 1.60 - 1.60 x 1.04 mm, approximate total weight of 0.24ct, clarity is eye clean, colorless, very slightly grayish, white color, (GIA W 0/3), cut is good. Transmitting light with no distortion, transparent. Color grade is an average for the group. Graded in the setting. Total Weight of Colored Stones 4.04 ct. Total Weight of Ring 4.50 grams AIG Appraised at $800.00.

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