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$500.00 USD
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10 CTS ALEXANDRITE ROUGH PARCEL RG-4257 raregems

1902
3

SKU
RG-4257
寸法(mm)
4.950 x 4.750 x 3.230mm
重さ (CT)
10.000
Treatment
No Treatment
タイプ
Rough


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 : 4.95 X 4.75  X 3.23  APPROXIMATELY 

SMALLEST PIECE: 3.26 X 3.09 X 2.28 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

配送業者 配送先Australia その他の国への配送
Standard Shipping - Tracked $19.00 / 7 $30.00 / 14
:国
Standard Shipping - Tracked 、 2以上のアイテムを含む注文で$19.00に割引されます
世界のその他の地域
Standard Shipping - Tracked 、 2以上のアイテムを含む注文で$30.00に割引されます
FedEx $39.00 / 4 $40.00 / 4
:国
FedEx 、 2以上のアイテムを含む注文で$39.00に割引されます
世界のその他の地域
FedEx 、 2以上のアイテムを含む注文で$40.00に割引されます
DHL $19.00 / 2 $30.00 / 14
世界のその他の地域
DHL 、 2以上のアイテムを含む注文で$30.00に割引されます

raregems
raregems
raregems, all rough
Mermaid Beach 、 Australia
確認済み
3591フィードバック

  • rich7419
    rich7419
    ポジティブ

    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
    ポジティブ

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

  • philsgems
    philsgems
    ポジティブ

    Great colour change. Thankyou

  • wtakano
    wtakano
    ポジティブ

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

  • bainesrh
    bainesrh
    ポジティブ

    Beautiful gemstone

40%
クーポンコード sale
まで有効
1st Jan 2025

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発送詳細

配送:
$30.00 14日 ( Standard Shipping - Tracked経由)
発送元:
Australia

支払いオプション

  • stripe
この販売者は、 Australiaでの取引に0.00%税金を追加します。

概要

リストタイプ : Standard
製品番号 : 2028650
始まります : 13th December 2024 07:07 pm PST
* すべての価格はUSDで表記されています