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  2. Hope Diamond - Wikipedia

    en.wikipedia.org/wiki/Hope_Diamond

    The Hope Diamond's last private owner was the American jeweler Harry Winston, who bought it in 1949 from the estate of the mining heiress and socialite Evalyn Walsh McLean. After exhibiting the diamond on tour for several years, Winston donated it in 1958 to the Smithsonian Institution 's National Museum of Natural History in Washington, D.C ...

  3. Tiffany & Co. - Wikipedia

    en.wikipedia.org/wiki/Tiffany_&_Co.

    Tiffany & Company, Union Square, Manhattan, storage area with porcelain, c. 1887 Tiffany & Co. was founded in 1837 by Charles Lewis Tiffany and John B. Young, [15] in New York City, as a "stationery and fancy goods emporium", with the help of Charles Tiffany's father, who financed the store for only $1,000 with profits from a cotton mill. [16]

  4. Gemological Institute of America - Wikipedia

    en.wikipedia.org/wiki/Gemological_Institute_of...

    The Gemological Institute of America ( GIA) is a nonprofit institute based in Carlsbad, California. It is dedicated to research and education in the field of gemology and the jewelry arts. [ 1] Founded in 1931, GIA's mission is to protect buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality.

  5. Charles Lewis Tiffany - Wikipedia

    en.wikipedia.org/wiki/Charles_Lewis_Tiffany

    Charles Lewis Tiffany (February 15, 1812 – February 18, 1902) was an American businessman and jeweler who founded New York City's Tiffany & Co. in 1837. Known for his jewelry expertise, Tiffany created the country's first retail catalog and introduced the English standard of sterling silver in imported jewelry in 1851.

  6. List of U.S. state minerals, rocks, stones and gemstones

    en.wikipedia.org/wiki/List_of_U.S._state...

    ^ Florida's state gem, moonstone, was adopted to highlight Florida's role in the United States' Lunar program, which landed the first astronauts on the Moon. [81] ^ Since 1983, Massachusetts has had 3 other official state rocks: State Historical Rock (Plymouth Rock), State Explorer Rock (Dighton Rock), and State Building and Monument Stone . In ...

  7. Diamond (gemstone) - Wikipedia

    en.wikipedia.org/wiki/Diamond_(gemstone)

    Diamond[ a] is a gemstone formed by cutting a raw diamond. Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light —giving the diamond its characteristic "fire"—make it useful for industrial applications and ...

  8. Tiffany Yellow Diamond - Wikipedia

    en.wikipedia.org/wiki/Tiffany_Yellow_Diamond

    The Tiffany Yellow Diamond is one of the largest yellow diamonds ever discovered. Its carat weight was originally 287.42 carats (57.484 g) in the rough when discovered in 1878 in the Kimberley mine in South Africa. It was cut into a cushion shape of 128.54 carats (25.108 g) with 82 [ 1] facets—24 more than a traditional round brilliant—to ...

  9. 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 ...

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