One electronically tested 14KT white gold ladies cast tanzanite and diamond ring with a bright polish finish. The featured tanzanite is set within a diamond floret supported by a ribbed under gallery, completed by a one and one-half millimeter wide band. Trademark is Orianne. Identified with markings of "14K". Condition is new, good workmanship. Containing: One prong set oval mixed cut natural tanzanite, measuring 9.10 x 6.90 x 4.80mm, approximate weight of 2.20ct., clarity is slightly included, type I, medium dark, moderately strong, violetish blue color, (GIA vB 6/4), 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.Fourteen prong set round brilliant cut diamonds approximate total weight of 14 Stones = 0.37ct. Graded in the setting. Clarity: SI-2 to I-2. Color: F - H. Total Weight of Colored Stones 2.20ct. Total Weight of Diamonds 0.37ct. Total Weight of Ring 3.08gm. AIG Appraised at $6,030.00.