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$50.00 USD
預計建議零售價:rrp
560
2

0.50cts Alexandrite Cab Catseye PG-4150 preciousgems

存貨單位
PG-4150
尺寸(毫米)
4.800 x 3.300 x 2.100mm
重量 (cts)
0.500
Treatment
No Treatment
類型
Cabochon
Shape
Oval
顏色

ALEXANDRITE

INDIA

BEAUTIFUL CATSEYE ROLL

COLOUR SHIFT

NICE GREEN CHANGES TO BROWNISH

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.

TRADING AS- TRUEBLUEOPALS PTY LTD/ LIGHTNINGOPALS LLC

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FedEx 對包含 2 或更多商品的訂單折扣為 $40.00
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preciousgems
preciousgems
wholesaler quality stones
:城市,國家
已驗證
:總反饋

  • joslorand
    joslorand
    積極的

    Just received them and they are exactly how they look in the video, lovely!

  • geologist
    geologist
    積極的

    Paid and shipped - no feedback left after 100 days

  • tharealneo
    tharealneo
    積極的

    Paid and shipped - no feedback left after 100 days

25.00%
優惠券代碼 Bargain
有效期至
1st Nov 2024

審計

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概述

列表類型 : Standard
產品編號 : 2239959
開始 : 23rd October 2024 05:00 pm PDT
* 所有價格均以:貨幣為單位