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31/07/2021 03:28 pm
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10.20CTS -ALEXANDERITE ROUGH COLOR CHANGE RG-3169

存貨單位
尺寸(毫米)
14.300 x 9.000 x 8.400mm
重量 (cts)
10.200
Treatment
No Treatment
類型
Rough
顏色

ALEXANDERITE ROUGH   colour change

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.

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FedEx $39.00 / :幾天天 $40.00 / :幾天天
:國家
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世界其他地區
FedEx 對包含 2 或更多商品的訂單折扣為 $40.00
DHL $19.00 / :幾天天 $30.00 / :幾天天
世界其他地區
DHL 對包含 2 或更多商品的訂單折扣為 $30.00

raregems
raregems
raregems, all rough
:城市,國家
已驗證
:總反饋

30.00%
優惠券代碼 easter
有效期至
26th Apr 2024

審計

Gemstone Sheriff計劃允許我們的會員請求對任何產品進行審核,該審核由獨立的 Gemologist 人員完成,該資格人員評估商品描述和圖片的準確性。

送貨細節

船運:
$30.00 :通過 Standard Shipping - Tracked 計算天數
發貨自:
Australia

付款方式

  • stripe
該賣家在 Australia 的交易中添加 0.00% 稅。

概述

列表類型 : Standard
產品編號 : 826147
開始 : 30th July 2021 10:50 pm PDT
* 所有價格均以:貨幣為單位