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$44.00
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26/09/2008 09:21 pm

TANZANITE STONE 0.50 CTS [S2235 ]

0
9
0

SKU
Dimensioni (mm)
x x mm
Peso (cts)
Certified Gemstones
NO
Tipo
Faceted
Colori

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TANZANITE

Well cut stone ready to be set in jewellery

Mohs scale 6.5 to 7

Grading

Weight 0.50 cts

size 5.8x4.1 x3 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.

Fornitore di spedizioni Spedizione a Australia Spedizione nel resto del mondo
FedEx $12.00 / 3 giorni $39.00 / 10 giorni
Australia
FedEx è scontato a $12.00 sugli ordini con 2 o più articoli
Resto del mondo
FedEx è scontato a $39.00 sugli ordini con 2 o più articoli
Registered Shipping $9.00 / 7 giorni $16.00 / 21 giorni
Australia
Registered Shipping è scontato a $9.00 sugli ordini con 2 o più articoli
Resto del mondo
Registered Shipping è scontato a $16.00 sugli ordini con 2 o più articoli

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.
Mermaid Waters , Australia
Verificato
19224 feedback

  • rickferreira626
    rickferreira626
    Positivo

    A gorgeous pair blue topaz stones. This is one happy customer.

  • opalgoat
    opalgoat
    Positivo

    Well packaged, beautiful gems

  • opalgoat
    opalgoat
    Positivo

    Well packaged, beautiful gems

  • opalgoat
    opalgoat
    Positivo

    Well packaged, beautiful gems

  • opalgoat
    opalgoat
    Positivo

    Well packaged, beautiful gems

Cronologia delle offerte (0)
Ancora nessuna offerta.

Verifica

Questo prodotto è stato verificato da Gemstone Sheriff e hanno riscontrato quanto segue:
  • Descrizione Preciso
  • Immagini accurate

Comments

The Verified Seller has provided accurate and complete information for this item including weight, dimensions and treatment

Questa verifica è stata richiesta 4 anni fa
Ultimo aggiornamento 4 anni fa

Dettagli di spedizione

Spedizione:
$16.00 21 giorni tramite Registered Shipping
Spedizioni da:
Australia

Opzioni di pagamento

  • paypal
  • stripe
Questo venditore aggiunge 10.00% tax alle transazioni in Australia .

Panoramica

Tipo di elenco : Standard
Codice prodotto : 51603
Prezzo di partenza : $44
Inizia : 26th September 2008 09:00 pm PDT
Finisce : 26th September 2008 09:21 pm PDT
* Tutti i prezzi sono in USD