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Fine Jewelry University Articles matching: “18kt fl”

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Fine Jewelry University (Show All FJU Articles)

  1. Polarized light diagram

    The Magic of Polarized Light

    … light. In the gemological world, this would be any light source that we use on a regular basis (e.g. overhead reflected light or a daylight equivalent fluorescent light source). Polarized light, on the other hand, has all of the … of this in nature is sunlight reflecting off of the water. When the light bounces off of the surface, that reflected light is partially polarized. This is because some of the rays pass through the water, and some of them reflect. In a …

  2. Jewelry solder is different than normal jewelry metals

    Jewelry Solder: What You Should Know

    …of it is gold with the rest being made up by a variety of different metals like silver, copper, nickel, and so on. Each of these other metals contributes some of their unique properties of the final alloy changing its color, hardness, flexibility, and more. That’s great, but what does this have to do with solder? With solder a different set of alloy metals are used than with regular karat gold with the purpose of lowering the melting point of the finished metal. These…

  3. Early attempts at making lab grown diamonds

    How Are Lab Grown Diamonds Made?

    … to create truly colorless gems. This is because even the smallest presence of nitrogen or boron during the process can result in a yellow or blue color respectively. Both HPHT and CVD diamonds tend to exhibit strong and unusual fluorescence characteristics when compared to natural diamonds. This fact, while not generally detrimental to the appearance of the diamonds, is quite useful when identifying them as lab grown . So, Which Kind of Lab Grown Diamond Should I …

  4. Lasers are now used for jewelry repair

    Laser Jewelry Repair

    … our customer’s jewelry. Lasers can repair an antique enameled pin without damaging the enamel or leaving visible signs of the restoration work. Our laser can fix jewelry without removing the stones or running the risk of solder flowing into the hinge and destroying its mobility. Antique filigree that is broken can be repaired. Restoring antique platinum jewelry is now possible with Arden Jewelers’ laser. The laser can also help Angelo create very complicated pieces …

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

    Gem in the Spotlight: Quartz

    …, named after the city in Spain where it was once held, is the largest faceted citrine gemstone. The stone was found in 1990, and remained uncut until 2009 due to the the difficulty of faceting such a large stone. Finished, this flawless gem weighs 20,200 carats (just under 9 pounds) and has dimensions of 200mm x 150mm. In 2012 the stone disappeared from the public eye due to a legal dispute and has yet to resurface. Mythology and Lore of Quartz Quartz gems are …

  6. The 4 Cs of Diamonds

    Diamond Buying Guide: The 4 C’s

    …viewer which makes them sparkle more than other shapes. The emerald cut, for example, gives a classic look with big flashes of light but very little sparkle or fire. Ultimately, it’s up to you to pick the shape that you like best. The … of inclusions determine the grade. The fewer inclusions, the more valuable the diamond. Grade Name Explanation FL Flawless No blemishes or inclusions IF Internally Flawless No inclusions, only insignificant blemishes VVS1-VVS2 Very, …

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

    Art Deco vs. Art Nouveau Style Jewelry

    … of art and design, including jewelry, for over 100 years. Each style brought unique elements into jewelry design, reflecting broader cultural and artistic shifts while captivating wearers with their unmistakable aesthetics. While there…different expressions in jewelry. Once you learn about the fundamental styles of each, you will start to see their influence everywhere. They are also important guide posts that can aid in dating vintage and antique jewelry. So, what …

  8. Tourmaline jewelry and loose gems

    Gem in the Spotlight: Tourmaline

    Tourmaline is one of the most beautiful gems that you’ve probably never heard of. Less popular than the likes of ruby or sapphire, tourmaline flies under the radar in the gem world and remains the best kept secret of gem collectors and connoisseurs who appreciate its unique properties and stunning array of colors. In fact, tourmaline is found in almost any color you can …

  9. Tsavorite garnet is a rare and beautiful green gem

    Gem in the Spotlight: Tsavorite Garnet

    …nomenclature of gemstones follows certain rules, and according to modern mineralogical methods, gemstones are given a name which ends in “-ite”. In honor of the Tsavo National Park where it was discovered and the Tsavo River which flows through it, the gem received the name Tsavorite. It is also less commonly referred to as Tsavolite. Mythology and Lore Unlike many of the other gemstones we write about, Tsavorite does not have a rich history or lore, given its recent …

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