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Min 7.25ct 12x12mm Square Russian Lab Alexandrite

Item: RAS120D

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    Min 7.25ct 12x12mm Square Russian Lab Alexandrite-RAS120D

    click to view larger image of Min 7.25ct 12x12mm Square Russian Lab Alexandrite-RAS120D

      Product Description for Min 7.25ct 12x12mm Square Russian Lab Alexandrite-RAS120D

      Alexandrite is a phenomenal gem known as "emerald by day, ruby by night" because it changes color from green in fluorescent and daylight to red in incandescent light. Ranking 8.5 on Mohs' scale, it's ideal for daily wear. Discovered in 1830 in emerald mines of Russia's Ural Mountains, it was named for Czar Alexander II. Found in Brazil, Sri Lanka, and Tanzania, alexandrite only forms when aluminum/beryllium and chrome (which rarely occurs in nature) come together, accounting for its rarity.

      Product Information for Min 7.25ct 12x12mm Square Russian Lab Alexandrite-RAS120D

      Product Type:Single Stone

      Primary Stone /  Alexandrite 

      Shape:SquareComposition:Synthetic
      Cut:StepTreatment:Untreated
      Color:BlueGemstone Group:Chrysoberyl
      Dimensions:12 MM - CalibratedOrigin:Russia
      Count:1.00Origin:Russia

      Care and Handling of Min 7.25ct 12x12mm Square Russian Lab Alexandrite-RAS120D

      Learn more about proper care of your gemstones and jewelry by visiting our Gemstone Enhancements and Treatments page.
      Customer Rating 4 out of 5 4 out of 5
      1 of 1 (100%) customers would recommend this product to a friend.


      Product Reviews  
      : 4 out of 5 4 out of 5
      Great cut and color, July 25, 2008
      BabyBlue , Florida
      Quality: 4 out of 5 4 out of 5
      Value: 5 out of 5 5 out of 5

      "Would have kept this stone except mine had some nicks on the underside along the cutting line. My gemologist said he would recommend keeping it due to the purchase priced I paid but I wanted a stone that did not have the flaws. If another one was available I would take it."

      Product met expectations: No
      Purchased as a gift: No
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      		 Alexandrite



      Fast Facts
      A member of the Chrysoberyl family, alexandrite holds a prized and highly priced position among jewelry and gem collectors.
      A color change stone, alexandrite can appear green in daylight and change to a raspberry color in incandescent light, but other color changes are also highly prized.
      Alexandrite was discovered in 1830 in the Ural Mountains on the day Czar Alexander II came of age, and thus the stones were named in his honor.
      The primary sources for alexandrite are Sri Lanka, Brazil, Burma (Myanmar), Madagascar and Russia.




      Alexandrite is a highly prized variety of chrysoberyl. Alexandrite only forms when aluminum/beryllium and chrome (which rarely occurs in nature) come together, accounting for its rarity. On Mohs’ scale of hardness, alexandrite is 8.5. It has a strong vitreous luster and primary sources include Sri Lanka, Zimbabwe, and Brazil (Minas Gerais).


      Color

      Alexandrite is typically found in blue, blue-green, and brownish-green shades. However, this phenomenal gem is known as "emerald by day, ruby by night" because of its ability to change color, depending on the type of light in which it's viewed. In the daylight and fluorescent light, alexandrite appears in shades of blue and green, but in tungsten (incandescent) light, it appears in shades of red. Other alexandrite color changes are possible (from blue to purple, from greenish blue to reddish blue, from brownish-green to brownish-red, etc.) and also highly prized.

      More About Alexandrite
      Care & Handling
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