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  2. List of gemstones by species - Wikipedia

    en.wikipedia.org/wiki/List_of_gemstones_by_species

    This is a list of gemstones, organized by species and types. Minerals There ... Gemstones of the World revised 5th edition, 2013 by Walter Schumann ISBN ...

  3. List of individual gemstones - Wikipedia

    en.wikipedia.org/wiki/List_of_individual_gemstones

    Logan Sapphire. Star of Bombay, given to Mary Pickford by Douglas Fairbanks, Sr. Star of India. Stuart Sapphire. Black Star of Queensland. Star of Adam, with a weight of 1,404.49 carats (280.898 g), it is the largest star sapphire in the world. Queen Marie of Romania Sapphire.

  4. Gemstone - Wikipedia

    en.wikipedia.org/wiki/Gemstone

    Gemstone. Group of precious and semiprecious stones—both uncut and faceted—including (clockwise from top left) diamond, uncut synthetic sapphire, ruby, uncut emerald, and amethyst crystal cluster. A gemstone (also called a fine gem, jewel, precious stone, semiprecious stone, or simply gem) is a piece of mineral crystal which, when cut or ...

  5. Turquoise - Wikipedia

    en.wikipedia.org/wiki/Turquoise

    Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula Cu Al 6 (PO 4) 4 8 ·4H 2 O.It is rare and valuable in finer grades and has been prized as a gemstone for millennia due to its hue.

  6. Category:Gemstones - Wikipedia

    en.wikipedia.org/wiki/Category:Gemstones

    M. Maine Mineral and Gem Museum. Malachite. Marlborough gems. Metal-coated crystal. Moissanite. Moldavite. Moonstone (gemstone) Morganite (gem)

  7. List of rubies by size - Wikipedia

    en.wikipedia.org/wiki/List_of_rubies_by_size

    A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). Other varieties of gem-quality corundum are called sapphires. Ruby is one of the traditional cardinal gems, together with amethyst, sapphire, emerald, and diamond. [1] The word ruby comes from ruber, Latin for red.

  8. Sunrise Ruby - Wikipedia

    en.wikipedia.org/wiki/Sunrise_Ruby

    Sunrise Ruby. The Sunrise Ruby. The Sunrise Ruby[1][2][3] is the world's most expensive ruby, most expensive coloured gemstone, and most expensive gemstone other than a diamond. [2][3][4] Originally mined in Myanmar, its current name is derived from a poem of the same name, written by the 13th-century Sufi poet Rumi. [5]

  9. List of emeralds by size - Wikipedia

    en.wikipedia.org/wiki/List_of_emeralds_by_size

    Zambia is the world's second biggest producer, with Kagem mine being the world's largest emerald mine [11] responsible for 25–30% of the world's production of gem-quality stones. [12] In 2019 Kagem emerald mine produced 42.4 million carats of emeralds. [13] The Zambian emerald sector is an important contributor of tax revenue to the Government.

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