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TANZANITE STONE 0.53 CTS [S2237 ]

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TANZANITE

Well cut stone ready to be set in jewellery

Mohs scale 6.5 to 7

Grading vs

Weight 0.53 cts

size 5.4x3.9 x3.4 mm

 

 

 

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.

Pružatelj usluge dostave Dostava u Australia Dostava u ostatak svijeta
FedEx $12.00 / :dani dani $39.00 / :dani dani
:zemlja
FedEx je snižen na $12.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
FedEx je snižen na $39.00 na narudžbe s 2 ili više artikala
Registered Shipping $9.00 / :dani dani $16.00 / :dani dani
:zemlja
Registered Shipping je snižen na $9.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Registered Shipping je snižen na $16.00 na narudžbe s 2 ili više artikala

sedagems
Hi Welcome to the Sedagems store, Run by Paul Sedawie and specializing in Australian sapphires and gems stones he has collected on his many buying trips world wide. All stock has a money back guarantee as your continued business is our business.
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Provjereno
:ukupne povratne informacije

  • tstrike31
    tstrike31
    Pozitivan

    Absolutely stunning,thank you for the super quick shipping.

  • gemarab
    gemarab
    Pozitivan

    Great and clear sapphire, beautiful cut ! Great packaging

  • marcopaulo
    marcopaulo
    Negativan

    Not as pictured and underweight by 1.52ct.

  • marcopaulo
    marcopaulo
    Pozitivan

    As pictured but unweight by .14 ct, will accept.

Revizija

Program Gemstone Sheriff omogućuje našim članovima da zatraže reviziju bilo kojeg proizvoda, koju dovršava neovisna :kvalifikacija koja procjenjuje točnost opisa artikla i slika.

Detalji dostave

dostava:
$3.00 21 days putem Registered Shipping
Brodovi iz:
Australia

Načini plačanja

  • paypal
  • stripe
Ovaj prodavač dodaje 10.00% porez na transakcije u Australia.

Pregled

Vrsta unosa : Standard
Identifikacijski broj proizvoda : 51614
Počinje : 7th November 2024 09:00 pm PST
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