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SILVER 1.84ct Tanzanite and Diamond Ring

Currency:USD Category:Jewelry / Rings Start Price:1.00 USD Estimated At:300.00 - 350.00 USD
SILVER 1.84ct Tanzanite and Diamond Ring
One prong set oval mixed cut natural tanzanite approximate weight of 1.84ct., clarity is eye clean, type I, medium dark, very slightly grayish, violetish blue color, (GIA vB 6/3), cut is good. Natural Tanzanite, color enhanced due to cobalt coating. The presence of the coating prevents determining the stone's actual depth of color. Transmitting light with no distortion, transparent. Grading in the setting. The cobalt coated Tanzanite has a low tolerance to ultrasonic cleaning, and should not be cleaned using this method.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.Fifty prong set round brilliant cut diamonds approximate total weight of 50 Stones = 0.21ct. Graded in the setting. Clarity: I-2 to I-3. Color: I - K. Total Weight of Colored Stones 1.84ct. Total Weight of Diamonds 0.21ct. Total Weight of Ring 2.64gm. WJA Appraised.