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Fine Jewelry University Articles matching: “natural diamonds cons”

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Fine Jewelry University (Show All FJU Articles)

  1. Blue Zircon loose gems and jewelry

    Gem in the Spotlight: Blue Zircon

    … the manmade diamond simulates were made, the colorless version of zircon was used in jewelry to mimic diamond. Why? Natural zircon is known for its scintillation, brilliance, and flashes of color or fire just like diamond. Zircon also is … name for colorless Zircon. Starlite is the name for the blue gem variety of Zircon. The color of Starlite is rarely natural, and is almost always heat treated. Of course, the blue form of Zircon is also called, imaginatively, Blue Zircon. …

  2. A group of art deco and art nouveau rings together

    Art Deco vs. Art Nouveau Style Jewelry

    …art. Many Art Nouveau jewelry pieces were made in silver, but white gold and platinum were quite common as well. The diamonds used in Art Nouveau jewelry were typically Old Mine cuts, but Old European cut stones were also included as they … and the Machine Age. Precious metals like platinum and white gold alongside rare and valuable gemstones such as diamonds, emeralds, and sapphires, were the materials of choice for Art Deco jewelry makers. The most prevalent diamond cut found…

  3. Beautiful iolite jewelry and loose gemstones

    Gem in the Spotlight: Iolite

    …violet. Unlike many other popular gems, iolite cannot be heat treated to enhance its color. The color you see is the natural color of the stone when it was first discovered. This adds value to many gem buyers who don’t want a treated …refers to iolite’s pleochroic nature. iolite cannot be heat treated to enhance its color. The color you see is the natural color of the stone when it was first discovered. Coming in at 7 to 7.5 on the Mohs hardness scale, iolite is a …

  4. Single white round pearl on white background

    Gem in the Spotlight: Pearl

    … Taylor. During Taylor’s ownership, the pearl was set into a necklace designed by Cartier, which also included diamonds and rubies. The La Peregrina pearl is one of the largest and most perfectly symmetrical natural pearls in existence. It …time, layer upon layer of nacre is deposited around the irritant, eventually forming a pearl. This process can occur naturally or via human intervention. Natural pearls grow in the wild without human intervention. They are very rare, and …

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

    Gem in the Spotlight: Amethyst

    …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… 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 stones of perfect clarity, calibrated sizes, and precision cutting. …

  6. Caring for and Cleaning Your Jewelry

    How to Clean Jewelry A diamond’s spectacular beauty is due to its light show. Diamonds make light reflect, show its many colors, and dazzle. To perform its magic the diamond must be clean. Diamonds are … toothpaste or toothpowder will also scratch the metals. This will take away the shine. Ammonia-based cleaners clean diamonds and gold well but they may hurt other gemstones. It is also not a good idea to soak jewelry for very long in ammonia…. Ultrasonic’s can damage other gemstones, know for certain it is safe to use. Ethyl alcohol is good for rinsing diamonds because it evaporates so quickly. Do not use any cleaning solutions that contain oil as they will spot and dull the …

  7. Tsavorite garnet is a rare and beautiful green gem

    Gem in the Spotlight: Tsavorite Garnet

    … clean Tsavorite, gently scrub it with a soft toothbrush and a solution of mild dish soap and warm water. Why Tsavorite Tsavorite has all of the qualities you want in a gemstone: beauty, rarity, intrinsic value, and romance. With its natural, fresh green color in a variety of shades and scintillating brilliance, Tsavorite is one of the most beautiful green gemstones in the world. It is a garnet so it is traditionally used for January’s birthstone. But, you don’t have to be…

  8. Three loose rubies in a row triangle oval and pear shaped

    Gem in the Spotlight: Ruby

    …ruby, and was originally mined in Myanmar. The Sunrise Ruby was eventually set by Cartier into a ring along with two diamonds weighing a total of 5 carats. In 2015, Sotheby’s put the ring up for auction where it sold for a record setting $30…. rubellite tourmaline (the red variety of tourmaline) gets its name. Pliny the Elder mentioned rubies in his work Natural History, including notes on their durability, which means that their physical properties have been known well for over …

  9. Collection of loose and mounted quartz gems of various types

    Gem in the Spotlight: Quartz

    …more than its fair share of misnomers. One famous one is “Alaska Diamond” for rock crystal alongside “Herkimer Diamonds” (see below). In recent times, the term “Green Amethyst,” which was commonly used for Prasiolite, has come under fire. It … (yes you read that correctly) slab of natural clear quartz and is one of the largest clusters ever found. Herkimer diamonds are a famous type of quartz not for their rarity, but for their ability to pass for diamonds to the untrained eye. Of…