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Reserve Not Met
Current Bid
1
Bids
Closed
09/04/2025 11:08 pm

10 CTS ALEXANDRITE ROUGH PARCEL RG-4284 RAREGEMS

1 bid
2397 views
12 watching
Details
SKU
RG-4284
Dimensions (mm)
7.58 x 4.02 x 2.36mm
Weight (cts)
10
Treatment
No Treatment
Type
Rough
Colours
Description


ALEXANDRITE ROUGH   colour change


TANZANIA-MANGHOLA DUMAWANGA DISTRICT ARUSHA REGION


NICE GREEN CHANGES TO PURPLE/RED

IDEAL FOR CABBING

TREATMENT-NONE

TOTAL PARCEL WEIGHT: 10 CARATS APPROXIMATELY  

TOTAL NUMBER OF PIECES: 24

LARGEST PIECE : 7.58 X 4.02  X 2.26 APPROXIMATELY

SMALLEST PIECE: 4.90 X 3.21 X 2.68  APPROXIMATELY


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 / LIGHTNINGOPALS LLC

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10 CTS ALEXANDRITE ROUGH PARCEL RG-4284 RAREGEMS
Qld, Australia
Owned by raregems
Recent Feedback
  • rustynut
    rustynut
    Positive

    Good stones and great service

  • gerald-t
    gerald-t
    Positive

    Great specimen. Good size & colour Best Thumbnail I've seen in 35 years of collecting Can you provide details regarding location of find?

  • rw167-671
    rw167-671
    Positive

    Happy with purchase, arrived today. Thank you

  • rw167-671
    rw167-671
    Positive

    Happy with purchase, arrived today. Thank you

  • rw167-671
    rw167-671
    Positive

    Happy with purchase , arrived today. Thank you

Bids History (1)

Reserve not met

rustynut
rustynut
9 months ago
Purchased from this seller previously

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Shipping Details

Costs:
Transit:
14 days via Standard Shipping - Tracked
Ships from:
Australia

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Overview

Listing Type : Standard
Product ID : 2038573
Estimated RRP :
Starting Bid :
Starts : 4th April 2025 08:36 pm PDT
Ends : 9th April 2025 11:08 pm PDT
* All prices are in USD

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