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      $600.00 USD
      Procijenjeni RRP $2,500.00
      Zatvoreno
      16/02/2025 09:19 pm

      20.87 CTS ALEXANDRITE ROUGH PARCEL RG-5286-raregems

      3358
      12

      SKU
      Dimenzije (mm)
      11.000 x 7.000 x 6.000mm
      Težina (cts)
      20.870
      Treatment
      No Treatment
      Boje


      ALEXANDRITE ROUGH  PARCEL colour change
      TANZANIA-MANGHOLA DUMAWANGA DISTRICT ARUSHA REGION


      NICE GREEN CHANGES TO PURPLE/RED

      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.


      Pružatelj usluge dostave Dostava Australia Dostava u ostatak svijeta
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      raregems
      raregems, all rough
      Mermaid Beach , Australia
      Provjereno
      3624 povratne informacije

      • solusinexistentia
        solusinexistentia
        Pozitivan

        Great quality and price! Item arrived on time. Will purchase from seller again.

      • solusinexistentia
        solusinexistentia
        Pozitivan

        Good experience with seller. Items arrived on time and as described for a good price.

      30%
      Kod kupona 30
      Vrijedi do
      1st Mar 2025

      Revizija

      Program Gemstone Sheriff omogućuje našim članovima da zatraže reviziju bilo kojeg proizvoda, koju dovršava neovisna Gemologist koja procjenjuje točnost opisa artikla i slika.

      Detalji dostave

      dostava:
      $30.00 14 days putem Standard Shipping - Tracked
      Brodovi iz:
      Australia

      Načini plačanja

      • stripe
      Ovaj prodavač dodaje 0.00% transakcijama u Australia .

      Pregled

      Vrsta unosa : Standard
      Identifikacijski broj proizvoda : 1486585
      Počinje : 2nd February 2025 10:53 pm PST
      * Sve cijene su u USD