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Its very easy. Read the underwritten instructions
    • 1

      Clean the ruby with a damp cloth or toothbrush to remove any debris or marks. Dig your fingernail into the gemstone to see if you can leave a scratch. If you can, it's not a ruby.

    • 2

      Gently scratch the ruby with a one cent coin. Choose an area that you don't mind damaging slightly, such as the underside of a gemstone that will be set in a ring. If the gem marks, then it's not a ruby.

    • 3

      Scratch the gem with a series of other items. Use a piece of glass and a steel knife. The knife has a hardness level of 7 and should not be able to scratch the ruby. Scratch the red stone with rough sandpaper. If there is no noticeable effect, then the gem is likely to be a genuine ruby.

    • 4

      Rub the ruby against a clean white porcelain tile. If it's real, the ruby will leave no color or streak behind. It may even scratch the tile. If the stone leaves a colored mark on the tile, it is likely to be another type of substance. The absence of a streak isn't definitive confirmation that the ruby is genuine, but the presence of color does confirm that it isn't real.

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12y ago

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Q: How do you identify the original ruby stone?
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