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2. 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]

3. 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.

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. Graff (jewellers) - Wikipedia

   en.wikipedia.org/wiki/Graff_(jewellers)

   Graff Diamonds International Ltd. Graff is a British multinational jeweller based in London. [ 1] It was founded by British jeweller Laurence Graff in 1960. A vertically integrated company, Graff operations comprise the design, manufacture and retail distribution of jewellery and watches.

6. 'Antiques Roadshow': diamond and ruby jewelry worth a fortune

   www.aol.com/news/2014-08-12-antiques-roadshow...

   Well, today, that 3-piece set is valued between $400,000-$450,000. According to The Daily Mail, rubies are the most expensive gems per carat on earth! To get your hands on some rubies and/or ...

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 ...