One electronically tested 14KT rose 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 two millimeter wide band. Identified with markings of "14K". 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 eye clean, type I, medium, very slightly grayish, bluish violet color, (GIA bV 5/3), cut is good. Transmitting light with no distortion, transparent. 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. Fifty-Six prong set round brilliant cut diamonds, measuring 1.90 - 1.80 x 1.11mm (depth est.) approximate total weight of 56 Stones = 1.39ct. Graded in the setting. Clarity: SI-2 to I-2. Color: G - I. Total Weight of Colored Stones 4.15ct. Total Weight of Diamonds 1.39ct. Total Weight of Ring 5.90gm. AIG Appraised at $11,280.00.