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Fine Jewelry University Articles matching: “created emerald”

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Fine Jewelry University (Show All FJU Articles)

  1. Group of loose emerald gemstones

    Gem in the Spotlight: Emerald

    Springtime exudes life, full of bright colors and renewed energy. Emerald, May’s gemstone, captures this enthusiasm for life in rich elegance. This precious gemstone has been revered for … mineral family (along with morganite and aquamarine) and are valued for their rich green color. The intensity of an emerald‘s hue depends on the presence of chromium and vanadium in the crystal structure. Emerald’s Mohs hardness rating is 7… a moderately refractive gemstone. Its specific gravity ranges from 2.65 to 2.75. One of the distinctive features of emeralds is that they often contain inclusions. Sometimes these inclusions are referred to as jardin (the French word for …

  2. 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, …the Ural Mountains in Russia in the 1830s. When it was first discovered by a Finnish mineralogist, he mistook it for emerald because of how exceptional the green was in daylight. Named after the Russian prince Alexander II, the first stones … the best of the best with a rare twist. One final note: while alexandrite in its natural form is expensive, its lab-created counterpart is very affordable. So no matter the occasion or budget, our gemologists will be able to find the right …

  3. Morganite is a beautiful soft-pink gemstone

    Gem in the Spotlight: Morganite

    … popular gemstones. Morganite has an impressive family tree. It is a beryl gem which puts it in the same family as emerald and aquamarine. Because of its association with emerald it is sometimes called “Pink Emerald”. Other names for …. Its durability is rated as excellent. Its hardness is 7.5 – 8.0 on the Mohs hardness scale which is comparable to emerald, topaz, and spinel. Its refractive index is 1.560 – 1.600, and its specific gravity is 2.67 – 2.90. These …

  4. Lasers are now used for jewelry repair

    Laser Jewelry Repair

    … spots. The work is so smooth that even an expert can’t detect the repair work once it is polished. The weld joints created by the laser are stronger than traditional solder. The laser uses extremely focused heat and the weld can be …

  5. Fake Diamonds: The Great Diamond Attack

    … all say that they were someone and the contestant would try to find out who was the real person. Technology has created many new diamonds and diamond lookalikes. “What is a real diamond?” is a difficult question these days. And the problem … 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 Moissanite …

  6. Synthetic Gems: The Whole Story

    Ruby, sapphire, emerald and alexandrite are very beautiful gems and very rare in their stunning beauty. These four gems have been coveted by… years. But, what if anyone could own them? At gem shows and museums, I have seen jaw dropping rubies, sapphires and emeralds. These gems in high quality have put ownership beyond most people to justify the price. Just a one carat gem could …synthetic. Both, I feel, are impossible to identify in a piece of jewelry. Synthetic ruby, sapphire, alexandrite and emerald are very complex because there are different ways to make them. The inexpensive way to make the synthetic gems cost …

  7. Tourmaline jewelry and loose gems

    Gem in the Spotlight: Tourmaline

    … hundreds of years. But, before the advent of modern gemology, most tourmaline was believed to be ruby, sapphire, or emerald. Gemology of Tourmaline Gemologically speaking, tourmaline is its own mineral and not a species or member of a …was first discovered in 1554 in Brazil when Francisco Spinoza’s expedition confused its vibrant green with that of emerald. Thus began a long trend of confusing tourmaline with other gems. Another notable example of this is the “Caesars Ruby…

  8. The Birthstones

    … term: brilliance, hardness, rarity, antiquity, purity and permanence. Learn more about Diamond May’s Birthstone: Emerald A symbol of love and rebirth, the emerald has been treasured for over 4,000 years. The name for the emerald is derived … “smaragdos”, meaning green stone. Spring and green symbolized faith and fertility. The early Christians valued the emerald as a symbol of resurrection. Emerald was believed to have special powers to improve a person’s psychic abilities and …

  9. Loose fantasy cut aquamarine

    Gem in the Spotlight: Aquamarine

    …passed down for generations but this tiara she special ordered from Garrard in 1957. The Gemology of Aquamarine Like emerald, aquamarine is a member of the beryl family (along with morganite, heliodor, and others). Unlike emerald, it is …