VINTAGE ESTATE 14K YELLOW GOLD GENUINE NATURAL TANZANITE GEMSTONE RING DESIGNER SIGNED HA PERFECT SIZE 6 3/4 5.55 GRAMS OVAL TANZANITE 7 MM'S X 5 MM'S. Tanzanite is blue Zoisite, a calcium aluminum silicate, and forms in prismatic, usually striated crystals, transparent to slightly opaque, and ranges in color from deep ultramarine blue to light violet-blue. The most coveted crystals are a saturated blue with a hint of purple around it. In raw form Tanzanite occurs as blue, purple, brown and yellow. Nearly all Tanzanite is heat-treated to produce the striking violet-blue color and to remove the brownish yellow areas.
Its pleochroistic property provides the shift in colors as the crystal is viewed from different perspectives. In artificial light it appears as an amethyst blue.
Tanzanite is relatively rare and costly, occurring in only one place in the world, the Merelani Hills in Tanzania, East Africa. It was discovered in 1967 and is named for its country of origin.It is not especially durable and should be worn with care. It should never be cleaned by ultrasonic methods. Atlantas Best Kept Secret for Diamonds and Jewelry CIRCA 1985. H&A International Jewelry has been an Atlanta institution for over 30 years. Our dedication to providing quality jewelry services has set us apart from competitors.
The item "VINTAGE ESTATE 14K GOLD GENUINE TANZANITE GEMSTONE RING DESIGNER SIGNED HA" is in sale since Thursday, March 01, 2018. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Gemstone". The seller is "4744366" and is located in Andover, Massachusetts.
This item can be shipped to United States.