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      $250.00 USD
      Geschatte adviesprijs $940.00

      10.70 CTSALEXANDRITE COLOURCHANGE ROUGH TBM-586-TRUEBLUEMINERALS

      1862
      8

      SKU
      TBM-586
      Afmetingen (mm)
      13.000 x 11.000 x 8.000mm
      Gewicht (cts)
      10.700
      Treatment
      No Treatment
      Clarity
      N/A
      Type
      Rough
      Shape
      Freeform
      Kleuren

      ALEXANDERITE

      BI-COLOUR

      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.

      trading as - trueblueopals / lightningopals llc

      Verzend provider Verzending naar Australia Verzending naar de rest van de wereld
      Standard Shipping - Tracked $20.00 / 7 $30.00 / 14
      Australia
      Standard Shipping - Tracked krijgt korting op $25.00 bij bestellingen met 2 of meer artikelen
      Rest van de wereld
      Standard Shipping - Tracked krijgt korting op $30.00 bij bestellingen met 2 of meer artikelen
      FedEx $40.00 / 3 $40.00 / 7
      Australia
      FedEx krijgt korting op $40.00 bij bestellingen met 2 of meer artikelen
      Rest van de wereld
      FedEx krijgt korting op $40.00 bij bestellingen met 2 of meer artikelen
      DHL $30.00 / 2 $30.00 / 21
      Rest van de wereld
      DHL krijgt korting op $30.00 bij bestellingen met 2 of meer artikelen

      trueblueminerals
      trueblueminerals
      rare large gemstones and minerals
      Mermaid Beach , Australia
      Geverifieerd
      815 feedback

      • virginiemillefiori
        virginiemillefiori
        Negatief

        unfortunately the colors in person under artificial or natural light look nothing like the ones posted on the listing. The stone appears very dark blue and it is hard to guess it is a parti sapphire.

      • peketrain
        peketrain
        Positief

        Very pleased with the specimen and transaction

      • scsamler
        scsamler
        Positief

        This stone made me fall in love with Padparadsha sapphire. Truly wonderful!

      20%
      Coupon code love
      Geldig tot
      28th Feb 2025

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      Verzendgegevens

      Verzenden:
      $30.00 14 dagen via Standard Shipping - Tracked
      Schepen van:
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      Betalingsmogelijkheden

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      Overzicht

      Vermeldingstype : Standard
      Product-ID : 2048850
      Begint : 18th February 2025 03:12 pm PST
      * Alle prijzen zijn in USD