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2. Stonesetting - Wikipedia

   en.wikipedia.org/wiki/Stonesetting

   A bezel set sapphire. The earliest known technique of attaching stones to jewelry was bezel setting. A bezel is a strip of metal bent into the shape and size of the stone and then soldered to the piece of jewelry. The stone is then inserted into the bezel, and the metal edge of the bezel pressed over the edge of the stone, holding it in place.

3. Bezel (jewellery) - Wikipedia

   en.wikipedia.org/wiki/Bezel_(jewellery)

   Modern bezel settings typically use a band of metal containing a groove and a flange (i.e. projecting lip) to hold a watch crystal or gemstone in its setting. This was the earliest method of setting gemstones into jewelry. In historic examples, such rings were often made by leaving a hole or slot in the ring with a thin lip which was bent over ...

4. 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 ...

5. Prong setting - Wikipedia

   en.wikipedia.org/wiki/Prong_setting

   A prong set diamond in a gold ring.. Prong setting or prong mount refers to the use of metal projections or tines, called "prongs", to secure a gemstone to a piece of jewelry.A prong setting is one component of what is known to jewelers as a head, a claw-shaped type of binding (typically three, four, or six individual prongs per head) that is welded or soldered to a jewelry item to mount (or ...

6. Navaratna - Wikipedia

   en.wikipedia.org/wiki/Navaratna

   The stones are often set within gold or silver jewelry, with a ruby as the centerpiece representing the Sun. Each additional stone around the ruby then represents another celestial body within the Solar System, or a node, in addition to representing good fortune and the characteristics of various religious figures. For traditional purposes and ...

7. Gemological Institute of America - Wikipedia

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

   Gemological Institute of America (GIA) 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 ...