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  2. Moissanite - Wikipedia

    en.wikipedia.org/wiki/Moissanite

    A moissanite engagement ring Moissanite: emerald cut. Moissanite was introduced to the jewelry market as a diamond alternative in 1998 after Charles & Colvard (formerly known as C3 Inc.) received patents to create and market lab-grown silicon carbide gemstones, becoming the first firm to do so. By 2018 all patents on the original process world ...

  3. Emerald - Wikipedia

    en.wikipedia.org/wiki/Emerald

    Emerald is a gemstone and a variety of the mineral beryl (Be 3 Al 2 (SiO 3) 6) colored green by trace amounts of chromium or sometimes vanadium. [2] Beryl has a hardness of 7.5–8 on the Mohs scale . [ 2 ]

  4. Jewellery - Wikipedia

    en.wikipedia.org/wiki/Jewellery

    A diamond solitaire engagement ring. Now popular in engagement rings, this usage dates back to the marriage of Maximilian I to Mary of Burgundy in 1477. [17] A popular style is the diamond solitaire, which features a single large diamond mounted prominently. [18] Within solitaire, there are three categories in which a ring can be classified ...

  5. Diamond cut - Wikipedia

    en.wikipedia.org/wiki/Diamond_cut

    A Heart cut diamond has romantic symbolism, so it is a common gift for Valentine's Day or a wedding anniversary. Pear-shaped diamonds look like drops of water, and the shape is suitable for diamond earrings. The most famous shapes are: Princess, Cushion, Heart, Pear, Marquise, Radiant, Asscher cut, Emerald, Oval. [17]

  6. Diamond - Wikipedia

    en.wikipedia.org/wiki/Diamond

    Gem-cut synthetic silicon carbide set in a ring. A diamond simulant is a non-diamond material that is used to simulate the appearance of a diamond, and may be referred to as diamante. Cubic zirconia is the most common. The gemstone moissanite (silicon carbide) can be treated as a diamond simulant, though more costly to produce than cubic ...

  7. Royal Asscher Diamond Company - Wikipedia

    en.wikipedia.org/wiki/Royal_Asscher_Diamond_Company

    The original design had 58 step-cut facets, a small table, high crown and steep pavilion with cut corners. An accurate description would be a cut cornered square emerald cut diamond. Also known as square emerald cuts, Asscher cut diamonds are roughly square in shape when viewed from above but have cut corners for more light to enter the diamond.

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