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Fine Jewelry University Articles matching: “Bracelet diamond”

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Fine Jewelry University (Show All FJU Articles)

  1. Opal Rings With Loose Opal Gemstones

    Gem in the Spotlight: Opal

    …”. Opal has a refractive index of 1.37 – 1.47 and a Mohs hardness of 5.5-6. This makes it one of the softest gemstones commonly used in jewelry. For reference, here are the Mohs hardness values for some other gemstones you may know: Diamond 10, Sapphire 9, Amethyst 7, and Peridot 6. Turquoise is about as hard as opal, but you would need to consider Pearl or Amber (both 2.5) to find a commonly used gem that is softer than opal. Common Opal Treatments There are several …

  2. Group of loose spinel gemstones with finished jewelry

    Gem in the Spotlight: Spinel

    … 8 and good toughness spinel is a great choice for all forms of jewelry. We recommend occasional wear for rings and bracelets, but earrings and pendants are suitable for daily wear. Spinel can come in virtually any color of the rainbow which …, it should be treated and stored with care. Its Mohs hardness of 8 puts it on par with Topaz. It’s softer than diamond or sapphire but harder than quartz, tourmaline, and peridot. With proper care there’s no reason why a piece of spinel …

  3. A globe icon with the beginning of a web address

    How to Sell Jewelry on eBay and Other Websites

    …Keep all of your shipping and insurance receipts in case the piece is damaged in transit. You must have a great description of your jewelry especially a nice gem because they could return it with a different gem (they could switch the diamond with a lower grade or even a CZ and claim that is what they got). If you use eBay, you have to be found, do the research on the best category and keywords for your item. Remember to add up all the cost of selling to set your price (…

  4. A group of alexandrite jewelyr and loose gems shown in different light to demonstrate color change

    Gem in the Spotlight: Alexandrite

    Emerald by day, ruby by night, more expensive than diamond and more illustrious than sapphire, emerald, or even ruby, alexandrite has been known around the world as one of the most sought-after gems for the better part of 200 years. But, what makes this stone so special? Gemology of …

  5. Nickel in jewelry can cause allergic reactions

    What to Do When Your Ring Irritates Your Skin

    …try a new design. We do custom jewelry design , and one of our favorite projects is to take the raw materials (gold, diamonds, gemstones, etc.) from a client’s existing ring and use them to make a new and exciting creation. We can reuse the …

  6. Group of loose amethyst gems emerald cut trillion and oval

    Gem in the Spotlight: Amethyst

    … or heat, as these can damage the gemstone. Prolonged UV/sun exposure can cause the color in amethyst to fade so keep that in mind when storing your amethyst jewelry. If you have an amethyst ring or other piece of jewelry with diamonds or other gemstones, you should be careful when cleaning it. You should use a soft brush to gently scrub the amethyst and avoid using ultrasonic cleaners, as these can damage the gemstone. Why Buy Amethyst There are many reasons why someone …

  7. A pile of scrap yellow gold jewelry

    Gold Purity and The Differences Between White and Yellow Gold

    … for platinum. Nowadays, they are jewelry metals in their own right and currently very fashionable and desirable. White gold is available up to 21 karats. Most engagement rings are 14k or 18k. White gold is often used to enhance diamonds and other gemstones. White gold bridal jewelry is increasingly popular

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