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$1,500.00 USD
推定希望小売価格 $4,500.00
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25/06/2022 04:07 pm

0.72 CTS CERTIFIED ALEXANDRITE TANZANIA COLOURCHANGE TBM-793

SKU
寸法(mm)
6.220 x 4.930 x 3.320mm
重さ (CT)
0.720
Certified Gemstones
はい
Treatment
No Treatment
タイプ
Faceted

ALEXANDERITE

BI-COLOUR

TANZANIA-MANGHOLA DUMAWANGA DISTRICT ARUSHA REGION

NICE GREEN CHANGES TO PURPLE

IDEAL FOR CABBING

TREATMENT-NONE

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.

配送業者 発送先:国 その他の国への配送
Standard Shipping - Tracked $20.00 / :日日 $30.00 / :日日
:国
:数量以上のアイテムを含む注文では、:プロバイダーは $25.00 に割引されます
世界のその他の地域
:数量以上のアイテムを含む注文では、:プロバイダーは $30.00 に割引されます
FedEx $40.00 / :日日 $40.00 / :日日
:国
:数量以上のアイテムを含む注文では、:プロバイダーは $40.00 に割引されます
世界のその他の地域
:数量以上のアイテムを含む注文では、:プロバイダーは $40.00 に割引されます
DHL $30.00 / :日日 $30.00 / :日日
世界のその他の地域
:数量以上のアイテムを含む注文では、:プロバイダーは $30.00 に割引されます

trueblueminerals
trueblueminerals
rare large gemstones and minerals
:都市、:国
確認済み
:合計フィードバック

  • peketrain
    peketrain
    ポジティブ

    Very pleased with the specimen and transaction

  • setillia
    setillia
    中性

    Responsive seller, which is appreciated. Lovely gem. The only issue was with shipping. I paid for post but it was sent via Fedex. Fedex (of course) charged me illegal fees over a month after delivery! This was why I chose post and not Fedex.

  • olga22220
    olga22220
    ポジティブ

    Paid and shipped - no feedback left after 100 days

20%
クーポンコード thanksgiving
まで有効
30th Nov 2024

監査

この製品は Gemstone Sheriff によって監査され、次のことが判明しました。
  • 説明が正確
  • 正確な写真

Comments

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

この監査は要求されました:日付
最終更新日:日付

発送詳細

配送:
$30.00 Standard Shipping - Tracked 経由の日数をカウント
発送元:
Australia

支払いオプション

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概要

リストタイプ : Standard
製品番号 : 1189131
始まります : 24th June 2022 08:05 pm PDT
* すべての価格は:通貨で表示されます