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Once the piece is trimmed it can be "dopped" or completed by hand. "Dopping" is normally done by adhering the stone with hard wax onto a length of wooden dowel called a "dop stick". The piece is then ground to the template line, the back edges may be bevelled, and finally the top is sanded and
201:(French: "in the manner of a cabochon") is usually applied to opaque gems, while faceting is usually used for transparent stones. Hardness is also taken into account as softer gemstones with a hardness lower than 7 on the
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in an ellipse, as opposed to in a uniformly round shape, such as a circle, and because the elliptical shape, combined with the dome, is attractive. An exception is cabochons on some
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The procedure involves cutting a slab of the rough rock with a slab saw, and then stencilling a shape from a template. The slab is then trimmed near the marked line using a
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in dust and grit. This would quickly make translucent gems unattractive—instead they are polished as cabochons, making the scratches less evident.
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Cutting and
Polishing Gemstones - A Collection of Historical Articles on the Methods and Equipment Used for Working Gems
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workshops and production facilities have moved away from silicon carbide to diamond grinding wheels or flat lap disks.
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The cutting and carving of gems were probably first done in ancient
Babylon several thousand years before Christ.
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cabochon cut can show the star or eye, which would not be visible in a faceted cut.
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with a flat reverse. Cabochon was the default method of preparing gemstones before
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wheels can be used to grind the rough rock down. Most
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saw—called a trim saw. Diamond-impregnated wheels or
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177:that has been shaped and polished, as opposed to
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231:The usual shape for cutting cabochons is an
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16:Gemstone that has been shaped and polished
41:Relevant discussion may be found on the
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302:cabochon on the crown of a men's dress
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212:In asteriated stones such as star
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122:cabochons in a variety of colours
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205:are easily scratched, mainly by
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34:relies largely or entirely on a
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321:pendants. The oval cabochon
262:polished to a uniform dome.
325:is 52 × 32 mm (2 × 1.3 in).
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347:(1st American ed.).
220:stones such as cat's eye
377:. Read Books Ltd. 2014.
243:, which are circular.
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47:improve this article
412:Cabochon Making 101
203:Mohs hardness scale
173: 'head') is a
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388:. Retrieved
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103:October 2020
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237:asymmetries
222:chrysoberyl
199:en cabochon
193:Application
189:developed.
165:; from
331:References
284:jeweller's
120:tourmaline
73:newspapers
62:"Cabochon"
390:21 August
280:Moonstone
218:chatoyant
214:sapphires
43:talk page
421:Category
300:sapphire
298:A round
256:lapidary
197:Cutting
175:gemstone
128:cabochon
323:pendant
266:Gallery
233:ellipse
183:obverse
179:faceted
171:caboche
87:scholar
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319:Amber
304:watch
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