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$461.00
Current Bid
1
Bids
Closed
28/11/2020 10:48 am
1
3875
4

23CTS -ALEXANDRITE ROUGH COLOR CHANGE RG-3214

SKU
Dimensions (mm)
18.000 x 12.000 x 10.000mm
Weight (cts)
23.000
Treatment
No Treatment
Type
Rough
Colours

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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Rest of the world
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DHL $19.00 / 2 days $30.00 / 14 days
Rest of the world
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raregems
raregems
raregems, all rough
Mermaid Beach, Australia
Verified
3493 Feedback

Bids History (1)
bfulk68
Purchased from this seller previously
3 years ago
$460.00

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Shipping Details

Shipping:
$30.00 14 days via Standard Shipping - Tracked
Ships from:
Australia

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Overview

Listing Type : Standard
Product ID : 839746
Estimated RRP : $1,300.00
Starting Bid : $460
Starts : 28th November 2020 01:55 pm AEST
Ends : 29th November 2020 04:48 am AEST
* All prices are in USD