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$180.00 USD
Estimated RRP $540.00
1564
4

9.15 CTS TANZANITE CARVING PG-341

SKU
Dimensions (mm)
16.000 x 4.500 x 4.500mm
Weight (cts)
9.150
Type
Carved
Colours

TANZANITE 

MERELANI HILLS TANZANIA

CARVING

TREATMENT-NONE

RARE COLLECTOR PC, NATURAL CLEAR CRYSTAL TANZANITE

ROYAL BLUE RICH PURPLE COLOUR 


Tanzanite is an extraordinary gemstone. It occurs in only one place worldwide -Tanzair africa. Its blue, surrounded by a fine hint of purple, is a wonderful colour. Thanks to its unusual aura and the help of the New York jeweller’s Tiffany, it has rapidly become one of the most coveted gemstones in the world.

Tanzanite is a blue variety of the gemstone zoisite. It consists of calcium aluminium silicate and is not particularly hard, having a value of 6.5 to 7 on the Mohs scale. For that reason, it should always be worn carefully and never placed in an ultrasonic bath for cleaning or brought into contact with acids.

The deep blue of the tanzanite is fantastic, and runs from ultramarine blue to light violet-blue. The most coveted colour is a blue surrounded by a delicate hint of purple, which has a particularly wonderful effect in sizes of over 10 carats. The well developed polychromaticity of the tanzanite is typical: depending on the angle from which you look at it, the stone may appear blue, purple or brownish-yellow. Having said that, most raw crystals are somewhat spoiled by a brownish-yellow component, though it can be made to disappear by the cutter if he heats the stone carefully in an oven to approximately 500°. During the procedure he must pay careful attention to the moment at which the colour turns to blue. This burning is a method of treatment which is regarded as customary in the trade, but the raw stones must be as free of inclusions as possible, since otherwise fissures may occur. In fact working with tanzanite can sometimes give even the most experienced cutter a bit of a headache, the cleavage of this gemstone being very pronounced in one direction. This exclusive gemstone is cut in every imaginable shape from the classical round shape to a number of imaginative designer cuts.

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preciousgems
wholesaler quality stones- TRADING SINCE 1995----All items are shipped from our Australian Head Office
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$30.00 14 days via Standard Shipping - Tracked
Ships from:
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Overview

Listing Type : Standard
Product ID : 1342507
Starts : 6th November 2024 06:40 pm PST
* All prices are in USD