A gemstone that is a polished domed shape on the top and flat on the bottom. Opaque gems such as Onyx, and translucent stones such as sapphires that will display an asterism (known as Star Sapphire) are typically cut as cabochons.
A style of cut stone that is oval in shape with a flat back for setting onto a sheet metal backing. This style is usually used with opaque stones, but sometimes is used with the less expensive transparent gemstones.
a stone (or other material) cut in a manner charachterized by smooth, usually curved surfaces, as opposed to the flat multiple facets found on stones like cut diamonds, etc, which are called facetted stones
Style of cutting a gem where the bottom is flat and the top is rounded and dome like. Resembles an upside down bowl. The shape is usually round or oval. There are no flat spots or edges except on the bottom.
A stone with a smoothly-rounded top found mostly in non-transparent stones like agate and jasper. It takes its name from the French term meaning â€œlike a bald headâ€ which is an accurate description. Some fine quality gems are cut as cabochons (a.k.a. â€œcabsâ€) including jadeite, coral, catâ€(tm)s-eye and star gems, precious opals, fire agates, etc.
Cabochon is derived from the French word caboche meaning knob. The term refers to a stone cut with a smooth highly polished rounded surface with no facets. Usually it is cut from an opaque or translucent stone, (but some emeralds, amethysts and garnets have been cabochon cut), or a stone with a spec...
Any precious stone cut in a convex shape, polished but not faceted. This is one of the oldest and simplest cuts. It's often used on opaque and translucent stones, such as opals, or stones with unusual optical properties, such as chrysoberyl cat's-eyes.
A carved ornament used on furniture of the mid-18th century, especially on the knees of cabriole chair legs. The name comes from that given to rounded, uncut gem stones; the furniture ornament resembles one of these, usually oval-shaped and surrounded by scrolled, leafy carving.
Cut "en cabochon" means smoothly cut, without facets, into a domed shape. Carat A measure of weight used for gemstones equivalent to 1/5 gram. The carat is divided into one hundred points. For instance, a ¼ carat stone would weight 25 points, or 25 hundredths of a carat, or 0.25 carats.
Any kind of precious stone, such as sapphire, ruby or emerald, uncut and only polished, generally of a half-spherical shape, mainly used as an ornament of the winding crown (s.) or certain elements of the case.
Popular in the mid C18th, it's a motif or ornament generally carved on the knees of cabriole legs, and comprises of a ball or domed shape, usually with rocaille or foliate surround. The term is also applied to a jewel cut into a domed shape, and was especially popular in the late C19th.
A stone with the upper side polished to a smooth, rounded domed surface with no facets. The back of the stone is flat and unpolished, originally so that the stoneâ€(tm)s structure and size was recognizable. Usually it is cut from an opaque or translucent stone. Stones with special optical effects are also cut â€œen cabochonâ€ (e.g. opal or tigerâ€(tm)s eye). Usually a cabochon is round or oval.
This refers to a small-domed shape cut of a precious stone in a round, oval, rectangle, triangle, or teardrop shape without any facets. This term has its roots in the French word caboche meaning a knob or small dome.
Shaped stones (usually semi precious or precious) generally with a flat back. Ovals are very common, as are rounds, squares, triangles etc. Also popular are freeform (irregular shaped with a flat back, usually made following the patterns in the stone) and designer cut (stylised cabs, can be quite expensive and can make some of the most popular and artistic jewellery). Cabs can also be made from dichroic glass, glass, wood, bone and shell. Often made into pendants, and smallers cabs are used in earrings, rings and bracelets. If you do wire wrapped jewellery, these are one of the things you will spend hours looking at, looking for - and enjoy doing so. The best place to start is ebay, type in "designer cab*" or "oval cab*" depending on what you're looking for. The * is essential as it allows for all the different spellings and abbreviations of the word. Below are some great cabs found on ebay.
A gemstone without facets that has a highly polished and rounded surface with a flat back. Stones normally finished with this technique are opal, moonstone, star ruby and sapphire. Also called a “carbuncle.
A cabochon or cabouchon is a gemstone which has been shaped and polished as opposed to facetted. The resulting form is usually a convex top with a flat bottom, although the term is used to mean any deliberate shape that is not facetted. Cutting "en cabochon" is usually applied to opaque gems, while facetting is usually applied to transparent stones.