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10 CTS ALEXANDRITE ROUGH PARCEL RG-4252 raregems

1531
4

SKU
RG-4252
Dimenzije (mm)
5.130 x 5.010 x 2.990mm
Težina (cts)
10.000
Treatment
No Treatment
Tip
Rough
Boje


ALEXANDRITE ROUGH   colour change


TANZANIA-MANGHOLA DUMAWANGA DISTRICT ARUSHA REGION


NICE GREEN CHANGES TO PURPLE/RED

IDEAL FOR CABBING 

TREATMENT-NONE 

TOTAL PARCEL WEIGHT: 10 CARATS APPROXIMATELY  

TOTAL NUMBER OF PIECES:  20

LARGEST PIECE : 5.13 X 5.01 X 2.99 APPROXIMATELY 

SMALLEST PIECE: 4.53  X 2.59  X 1.88 APPROXIMATELY



This rare gemstone is named after the Russian tsar Alexander II (1818-1881), the very first crystals having been discovered in April 1834 in the emerald mines near the River in the Urals. The discovery was made on the day the future tsar came of age. Although alexandrite is a relatively young gemstone, it certainly has a noble history. Since it shows both red and green, the principal colours of old Imperial Russia, it inevitably became the national stone of tsarist Russia.

Alexandrite is very scarce: this is due to its chemical composition. It is basically a chrysoberyl, a mineral consisting of colourless or yellow transparent chrysoberyl, chrysoberyl cat’s eye and colour-changing alexandrite (also in cat’s eye varieties). It differs from other chrysoberyls in that it not only contains iron and titanium, but also chromium as a major impurity. And it is this very element which accounts for the spectacular colour change. Rarely, vanadium may also play a part. According to CIBJO nomenclature, only chrysoberyls displaying a distinct change of colour may be termed alexandrite.


TRADING AS TRUEBLUEOPALS / LIGHTNINGOPALS LLC

Pružatelj usluge dostave Dostava Australia Dostava u ostatak svijeta
Standard Shipping - Tracked $19.00 / 7 $30.00 / 14
Australia
Standard Shipping - Tracked je snižen na $19.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Standard Shipping - Tracked je snižen na $30.00 na narudžbe s 2 ili više artikala
FedEx $39.00 / 4 $40.00 / 4
Australia
FedEx je snižen na $39.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
FedEx je snižen na $40.00 na narudžbe s 2 ili više artikala
DHL $19.00 / 2 $30.00 / 14
Ostatak svijeta
DHL je snižen na $30.00 na narudžbe s 2 ili više artikala

raregems
raregems, all rough
Mermaid Beach , Australia
Provjereno
3591 povratne informacije

  • rich7419
    rich7419
    Pozitivan

    Just received my Ruby it’s a cute little thing. I believe my sister-in-law will like it took a minute to get here to the states, but I am happy with my purchase would buy from you again

  • philsgems
    philsgems
    Pozitivan

    Great piece of emerald. I have already faceted a 2.5 carat gem from it. Thankyou

  • philsgems
    philsgems
    Pozitivan

    Great colour change. Thankyou

  • wtakano
    wtakano
    Pozitivan

    Much nicer in person than in the photo. I am happy to include these into my gemstone family!

  • bainesrh
    bainesrh
    Pozitivan

    Beautiful gemstone

40%
Kod kupona sale
Vrijedi do
1st Jan 2025

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Detalji dostave

dostava:
$30.00 14 days putem Standard Shipping - Tracked
Brodovi iz:
Australia

Načini plačanja

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Ovaj prodavač dodaje 0.00% transakcijama u Australia .

Pregled

Vrsta unosa : Standard
Identifikacijski broj proizvoda : 2028655
Počinje : 13th December 2024 07:08 pm PST
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