7.66ct Dark Tanzanite and 1.86ctw Diamond 14K Yellow Gold Ring
One electronically tested 14KT yellow gold ladies cast tanzanite and diamond ring. Condition is new, good workmanship. The featured tanzanite is set within an elaborate diamond lattice gallery, supported by diamond set shoulders and completed by a four and one-half millimeter wide band. Bright polish finish with milgrain detailing throughout. Trademark is RT. Identified with markings of "14K". Containing:
One prong set triangle mixed cut natural tanzanite, measuring 12.65 x 13.00 x 8.20mm, approximate weight of 7.66ct., clarity is eye clean, type I, dark, strong, bluish violet color, (GIA bV 7/5) to dark, strong, violetish blue, (GIA vB 7/5), 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 and 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, and 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.
Two hundred thirty-three bead set round brilliant cut diamonds, measuring 1.50 - 1.10 x 0.78mm (depth est.) approximate total weight of 233 Stones = 1.86ct. Graded in the setting.
Clarity SI-2 to I-2
Total Weight of Colored Stones 7.66ct.
Total Weight of Diamonds 1.86ct.
Total Weight of Ring 12.60 gm