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2. Moissanite - Wikipedia

   en.wikipedia.org/wiki/Moissanite

   Moissanite (/ ˈmɔɪsəˌnaɪt /) [ 5 ] is naturally occurring silicon carbide and its various crystalline polymorphs. It has the chemical formula SiC and is a rare mineral, discovered by the French chemist Henri Moissan in 1893. Silicon carbide or moissanite is useful for commercial and industrial applications due to its hardness, optical ...

3. Aurora Pyramid of Hope - Wikipedia

   en.wikipedia.org/wiki/Aurora_Pyramid_of_Hope

   The Aurora Pyramid of Hope is a collection of 296 cut natural diamonds in a wide variety of colors, billed as "the most comprehensive natural color diamond collection in the world". [1] It is owned by Aurora Gems, Inc., a diamond merchant specialising in fancy color diamonds. The collection has been displayed on loan in a pyramid-shaped display ...

4. Gemstone - Wikipedia

   en.wikipedia.org/wiki/Gemstone

   A collection of gemstone pebbles made by tumbling the rough stones, except the ruby and tourmaline, with abrasive grit inside a rotating barrel. The largest pebble here is 40 mm (1.6 in) long. The traditional classification in the West, which goes back to the ancient Greeks, begins with a distinction between precious and semi-precious; similar ...

5. Jewellery - Wikipedia

   en.wikipedia.org/wiki/Jewellery

   Jewellery. Jewellery (or jewelry in American English) consists of decorative items worn for personal adornment such as brooches, rings, necklaces, earrings, pendants, bracelets, and cufflinks. Jewellery may be attached to the body or the clothes. From a western perspective, the term is restricted to durable ornaments, excluding flowers for example.

6. Gemstone irradiation - Wikipedia

   en.wikipedia.org/wiki/Gemstone_irradiation

   Gemstone irradiation is a process in which a gemstone is exposed to artificial radiation in order to enhance its optical properties. High levels of ionizing radiation can change the atomic structure of the gemstone's crystal lattice, which in turn alters the optical properties within it. [1] As a result, the gem­stone's color may be ...

7. Fancy Color Research Foundation - Wikipedia

   en.wikipedia.org/wiki/Fancy_Color_Research...

   Fancy Color Research Foundation (FCRF) is a non-profit organization that promotes the transparency and fair trade for the fancy colored diamonds industry. The foundation was officially inaugurated in November 2014. [1] [2] The FCRF conducts research on all aspects of fancy color diamonds and publishes quarterly updates of the Fancy Color ...