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Fine Jewelry University Articles matching: “25 cushion lab”

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Fine Jewelry University

  1. Lab grown synthetic diamond Type IIa tester with diamond

    How to Tell If a Diamond Is Natural or Lab Grown

    …’s not as simple as you might think. First, you have to decide what “real” means. If you are not familiar with lab grown diamonds, you might want to check out our introduction to lab grown and synthetic diamonds before continuing with … like Cubic Zirconia (CZ) or Moissanite, it is easy to identify them because they aren’t diamonds. But, with lab grown diamonds, the chemical structure and properties are all the same as natural diamond, so it becomes much more difficult…

  2. Fake Diamonds: The Great Diamond Attack

    … a likes. Modern science has developed a man made gem that can fake out the standard diamond tester. Moissanite is lab-created, silicon carbide, and it gives a positive reading on a diamond tester. But science fights back with a … also has some gemological properties (it is a DR stone while diamond is a SR stone) that help identify it, but labs are working to change the nature of the stone. It has a Mohs hardness of 9.25, excellent toughness, refractive index of …

  3. The different parts of an engagement ring

    Anatomy of a Ring

    … that halos bring to most rings. In fact, like cathedrals, they can even help protect the center stone from damage. If you are shopping for a halo engagement ring, first look for the overall shape of halo that you like (e.g. round, cushion, square, something else), and then consider how the accent stones in the halo are set. Are they secure? Will the halo help protect the center stone from impact? So there you have it. A brief introduction to the anatomy of a ring. We hope…