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Cabochon. A cabochon ( / ˈkæbuʃɒn /; from Middle French caboche 'head') is a gemstone that has been shaped and polished, as opposed to faceted. The resulting form is usually a convex (rounded) obverse with a flat reverse. [ 1] Cabochon was the default method of preparing gemstones before gemstone cutting developed. [ 2]
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.
It was designated the official gemstone of Lethbridge, Alberta, Canada in 2007, [ 2][ 3] and was subsequently designated as Alberta's official gemstone in April 2022. [ 4] Ammolite is also known as aapoak ( Kainah for "small, crawling stone"), gem ammonite, calcentine, and korite. The latter is a trade name given to the gemstone by the Alberta ...
Gemcutting in Thailand. Lapidary (from the Latin lapidarius) is the practice of shaping stone, minerals, or gemstones into decorative items such as cabochons, engraved gems (including cameos ), and faceted designs. A person who practices lapidary is known as a lapidarist. A lapidarist uses the lapidary techniques of cutting, grinding, and ...
The Aztecs viewed turquoise as an embodiment of fire and gave it properties such as heat and smokiness. They inlaid turquoise, together with gold, quartz, malachite, jet, jade, coral, and shells, into provocative (and presumably ceremonial [clarification needed]) mosaic objects such as masks (some with a human skull as their base), knives, and ...
A cabochon yellow-green quartz showing the cat's-eye effect. To bring out the chatoyancy effect, gemstones are typically fashioned into a cabochon cut, characterized by a rounded, flat base rather than facets, with the fibrous structures aligned parallel to the base. High-quality specimens display a single, sharply defined band of light that ...
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