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Fine Jewelry University Articles matching: “Diamond jewelry set”

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Fine Jewelry University (Show All FJU Articles)

  1. Nickel in jewelry can cause allergic reactions

    What to Do When Your Ring Irritates Your Skin

    Nothing is more frustrating than being unable to wear your engagement ring or other jewelry because it irritates your skin. Don’t worry. There are many options you have when faced with this problem. The first… of irritation: 1) Physical irritation caused by the metal rubbing against the skin, and 2) allergic reactions to jewelry. These types of irritation can look very similar, but their root causes and solutions are very different. Physical …caused your finger to swell slightly. Allergic Reactions Some people are allergic to certain metals that are used in jewelry. This can show up as a rash or discoloration of the skin which can begin hours or even days after contact and may …

  2. Early attempts at making lab grown diamonds

    How Are Lab Grown Diamonds Made?

    The dream of making a beautiful and valuable diamond from simple carbon has long captivated the imagination of scientists and visionaries alike. Just like the alchemists…, many have tried to achieve this impressive feat. We have only recently been able to produce gem quality, lab grown diamonds that are large enough to be used in jewelry. But, how is it done? Early Efforts Throughout history, many people …. Henri Moissan was one of the early pioneers in the field. In 1893, he claimed to have successfully made a diamond by heating charcoal to 3,500 degrees Celsius inside a carbon crucible. Many attempts were made to reproduce his techniques …

  3. Beautiful iolite jewelry and loose gemstones

    Gem in the Spotlight: Iolite

    Iolite is maybe not the first gemstone people think of for their blue-violet jewelry, but it should be near the top of the list. Iolite’s color range of blue, blue-violet, and violet competes for …, if you ever need to find north, I would recommend a different approach. Just use the finger that your iolite jewelry is worn on to open the compass app on your smart phone. From there you can find both magnetic north and true north. I … than Opal, and softer than Emerald or Topaz. Because of this, some extra care should be taken with your iolite jewelry. Try to avoid wearing it in situations where it might be hit against hard objects to keep it free from cracks and small …

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

    Gem in the Spotlight: Amethyst

    Amethyst is known for its beautiful purple color, and it is the most important quartz variety used in jewelry. Purple has long been considered a royal color, so it is not surprising that amethyst has been in so much demand … purple, resulting in the creation of the gemstone known as amethyst. Amethyst has a long history of being used in jewelry and other decorative items. It was highly prized by ancient civilizations such as the Egyptians, who believed that … a fairly recent discovery as many low cost, high quality, deeply colored amethysts are now appearing in inexpensive jewelry. Because the cost of testing is higher than the cost of even the natural stones it is not often performed. Beware of…

  5. Group of loose spinel gemstones with finished jewelry

    Gem in the Spotlight: Spinel

    …. Gemology of Spinel With a Moh’s hardness of 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 …along. Stories like this have been occurring regularly for the last century, whether it is with an heirloom piece of jewelry or something found at the beach, what many people have believed to be a ruby for years turned out to be spinel. …

  6. Group of loose topaz gems and topaz jewelry

    Gem in the Spotlight: Topaz

    …ht. History and Lore Topaz in its pure form is naturally colorless, clear like a diamond. The famous “Braganza Diamond” was thought to be the largest diamond ever found (prior to the Cullinan Diamond) at 1,680 carats and was set in the Portu… varieties have their own names: Imperial Topaz: When both orange and red colors are present (although much of the jewelry industry might call golden topaz imperial). Golden Topaz: Yellow to orange without any red component (could be called …

  7. Synthetic Gems: The Whole Story

    … to plastic to high tech chemical tongue twister like gadolinium gallium garnet (also called GGG) and the modern diamond simulant Moissanite, a man made silicon carbide. In gemology, any material used to look like a gem is called a simulant… clear glass, rock quartz, GGG, and Moissanite are all diamond simulants. They look like diamonds, but they are not diamonds. These simulants are easy for a well trained and equipped gemologist to detect. But if you had gem material that is …

  8. Peridot is a bright yellow-green gemstone

    Gem in the Spotlight: Peridot

    …. It is actually pronounced “pear-a-doe” instead of “pear-a-dot” although you will find many, even in the jewelry trade, who use the mispronunciation on a daily basis. The name “Peridot” is simply a French word derived from the Arabic for … for cleaning. Instead, use warm soapy water and a tooth brush for at-home cleanings. If well cared for, Peridot jewelry can last generations. We have an excellent selection of Peridot jewelry and loose Peridot gems that we can set for you. …

  9. A collection of jade jewelry and loose gems

    Gem in the Spotlight: Jade

    …. Jadeite was incredibly important to the Mayans and Aztecs. They used it for medicinal purposes and carved it into jewelry and religious artifacts. When jadeite reached China for the first time in the 1700s, gem carving had already been a … like splitting hairs, but it actually has a big impact on how gems are worn and what they can handle. We all know diamonds are the hardest gem commonly available on earth. If you scraped them together, a diamond would scratch a piece of …