THE PREMIER MARKETPLACE FOR REAL GEMS
$150.00 USD
Prezzo consigliato al pubblico $240.00

3.95CTS TANZANITE TWIN CRYSTAL SPECIMEN PG-385

1349
4

SKU
Dimensioni (mm)
11.500 x 7.500 x 6.000mm
Peso (cts)
3.950
Tipo
Specimen
Colori

TANZANITE SPECIMEN

MERELANI HILLS TANZANIA

TREATMENT-NONE

TWIN CRYSTAL 

 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.

Fornitore di spedizioni Spedizione a United States of America Spedizione nel resto del mondo
Standard Shipping - Tracked $30.00 / 7 giorni $30.00 / 14 giorni
United States of America
Standard Shipping - Tracked è scontato a $30.00 sugli ordini con 2 o più articoli
Resto del mondo
Standard Shipping - Tracked è scontato a $30.00 sugli ordini con 2 o più articoli
FedEx $40.00 / 7 giorni $40.00 / 7 giorni
United States of America
FedEx è scontato a $40.00 sugli ordini con 2 o più articoli
Resto del mondo
FedEx è scontato a $40.00 sugli ordini con 2 o più articoli
DHL $30.00 / 2 giorni $30.00 / 4 giorni
Resto del mondo
DHL è scontato a $30.00 sugli ordini con 2 o più articoli

preciousgems
preciousgems
wholesaler quality stones- TRADING SINCE 1995----All items are shipped from our Australian Head Office
Mermaid Beach , United States of America
Verificato
3318 feedback

  • sapphireandemerald
    sapphireandemerald
    Positivo

    12/2/2024 - arrived today and they were in good conditions and the blue is amazing. IM very happy with the order

  • sapphireandemerald
    sapphireandemerald
    Positivo

    12/2/2024 - arrived today and they were in good conditions and the blue is amazing.

  • orestesg
    orestesg
    Positivo

    Paid and shipped - no feedback left after 100 days

  • nicolasvanb
    nicolasvanb
    Positivo

    Paid and shipped - no feedback left after 100 days

30%
Codice coupon Gift
Valido fino a
1st Jan 2025

Verifica

Il programma Gemstone Sheriff consente ai nostri membri di richiedere un controllo su qualsiasi prodotto, che viene completato da un Gemologist indipendente che valuta l'accuratezza della descrizione e delle immagini dell'articolo.

Dettagli di spedizione

Spedizione:
$30.00 14 giorni tramite Standard Shipping - Tracked
Spedizioni da:
United States of America

Opzioni di pagamento

  • stripe

Panoramica

Tipo di elenco : Standard
Codice prodotto : 1370705
Inizia : 18th December 2024 08:12 pm PST
* Tutti i prezzi sono in USD