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  2. Gemstone - Wikipedia

    en.wikipedia.org/wiki/Gemstone

    Paraiba Tourmaline has become one of the most popular gemstones in recent times thanks to its color and is considered to be one of the important gemstones after rubies, emeralds, and sapphires according to Gübelin Gemlab. Even though it is a tourmaline, Paraiba Tourmaline is one of the most expensive gemstones. [31]

  3. Tourmaline - Wikipedia

    en.wikipedia.org/wiki/Tourmaline

    The new type of tourmaline, which soon became known as paraiba tourmaline, came in blue and green. Brazilian paraiba tourmaline usually contains abundant inclusions. Much of the paraiba tourmaline from Brazil does not actually come from Paraíba, but the neighboring state of Rio Grande do Norte. Material from Rio Grande do Norte is often ...

  4. Paraíba - Wikipedia

    en.wikipedia.org/wiki/Paraíba

    A paraiba tourmaline and diamond ring, in platinum. The neon Paraíba tourmaline has also been found in the neighboring state of Rio Grande do Norte. In the early 2000s, tourmaline gems containing copper and bearing similar colors were found in Nigeria and Mozambique. [63] Initially, the nomenclature for this tourmaline was "Paraíba tourmaline".

  5. Facet - Wikipedia

    en.wikipedia.org/wiki/Facet

    The art of cutting a gem is an exacting procedure performed on a faceting machine.The ideal product of facet cutting is a gemstone that displays a pleasing balance of internal reflections of light known as brilliance, strong and colorful dispersion which is commonly referred to as "fire", and brightly colored flashes of reflected light known as scintillation.

  6. Why 'Cosmic Cobalt' Is Our Color of the Year for 2025

    www.aol.com/lifestyle/why-cosmic-cobalt-color...

    Artists throughout history—from Vermeer and Klimt to Miro and Mondrian—have used the color extensively. In fact, 20th-century French artist Yves Klein loved the shade so much that he patented ...

  7. Rubellite - Wikipedia

    en.wikipedia.org/wiki/Rubellite

    Rubellite is the red or pink variety of tourmaline and is a member of elbaite. Rubellite is also the rarest gem in its family. [2] It is occasionally mistaken for ruby. [3] These gems typically contain inclusions. [4] Notable countries where rubellite can be mined include Afghanistan, Brazil, Madagascar, Myanmar, Nigeria, Russia, and the United ...

  8. Diamond cutting - Wikipedia

    en.wikipedia.org/wiki/Diamond_cutting

    The weight retention analysis studies the diamond rough to find the best combination of finished stones as it relates to per carat value. For instance, a 2.20-carat (440 mg) octahedron may produce (i) either two half-carat (100 mg) diamonds whose combined value may be higher than that of (ii) a 0.80-carat (160 mg) diamond plus a 0.30-carat (60 ...

  9. The best stocking stuffers under $25 for everyone on your list

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    Reviewers say it’s great for “rough beards” and that it “smells great.” It’s made with maracuja oil and shea butter, so you know it’s made to hydrate dry facial hair. (Bonus points ...

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