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$81.00
Current Bid
1
Bids
Closed
05/02/2020 08:48 pm
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5.0CTS -ALEXANDERITE ROUGH COLOR CHANGE RG-3175

SKU
Dimensions (mm)
10.800 x 9.700 x 5.500mm
Weight (cts)
5.000
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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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)
ben98
Purchased from this seller previously
4 years ago
$80.00

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Audit

This product has been audited by a Gemstone Sheriff and they have found the following:
  • Description Accurate
  • Pictures Accurate

Comments

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

This audit was requested 4 years ago
Last updated 4 years ago

Shipping Details

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

Payment Options

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This seller adds 0.00% tax to transactions in Australia.

Overview

Listing Type : Standard
Product ID : 826501
Estimated RRP : $300.00
Starting Bid : $100
Starts : 6th February 2020 01:25 pm AEST
Ends : 6th February 2020 02:48 pm AEST
* All prices are in USD