One electronically tested 14KT yellow gold ladies cast tanzanite and diamond ring with a bright polish finish. The featured tanzanite is set within tiered diamond bezels supported by a tuliped under gallery and diamond ribbon shoulders, completed by a four millimeter wide band. Condition is new, good workmanship. Containing: One prong set oval mixed cut natural tanzanite, measuring 10.90 x 8.90 x 5.79mm, 5%. bulge factor, approximate weight of 4.15ct., clarity is slightly included, type I, medium, very slightly grayish, violet color, (GIA V 5/3), cut is good. Transmitting light with a minimum of distortion, transparent. 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 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. Seventy-Four prong set round brilliant cut diamonds, measuring 2.00 - 1.90 x 1.17mm (depth est.) approximate total weight of 74 Stones = 2.10ct. Graded in the setting. Clarity: SI-2 to I-2. Color: G - I. Total Weight of Colored Stones 4.15ct. Total Weight of Diamonds 2.10ct. Total Weight of Ring 7.98gm. AIG Appraised at $12,405.00.