enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Stonesetting - Wikipedia

   en.wikipedia.org/wiki/Stonesetting

   Agates and turquoise are usually cut this way, but precious stones such as rubies, emeralds and sapphires may also be. [2] [3] [4] Many stones like star sapphires and moonstones must be cut this way in order to properly display their unusual appearance. [1] [4] A faceted shape resembles that of the modern diamond.

3. Facet - Wikipedia

   en.wikipedia.org/wiki/Facet

   Cutting and polishing diamonds in the Netherlands 1946. The art of cutting a gem is an exacting procedure performed on a faceting machine.The ideal product of facet cutting is a gemstone that displays a pleasing balance of internal reflections of light known as brilliance, strong and colorful dispersion which is commonly referred to as "fire", and brightly colored flashes of reflected light ...

4. Faceting machine - Wikipedia

   en.wikipedia.org/wiki/Faceting_machine

   For example, the index wheel may have 64 teeth. If a round stone with eightfold symmetry is being cut, the index will be set at 0, 8, 16, 24, 32, 40, 48 and 56 for each of the main facets around the stone. If a square stone is being cut, only 0, 16, 32 and 48 would be used.

5. Gemstone - Wikipedia

   en.wikipedia.org/wiki/Gemstone

   These have been a popular shape since ancient time and is more durable than faceted gems. [34] Stones which are cut with a faceting machine by polishing small flat windows called facets at regular intervals at exact angles. [34] Stones which are opaque or semi-opaque such as opal, turquoise, variscite, etc. are commonly

6. Lapidary - Wikipedia

   en.wikipedia.org/wiki/Lapidary

   Removing cut stone and placing it in lapidary stick. A gemcutter then selects the shaping wheel and applies abrasive compound. They hold a lapidary stick against the revolving shaping wheel and lapidary disk to further shape stone and grind facets. Depositing stone within a barrel with both water and a grinding/polishing medium and either ...

7. Cabochon - Wikipedia

   en.wikipedia.org/wiki/Cabochon

   Cutting en cabochon (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 Mohs hardness scale are easily scratched, mainly by silicon dioxide in dust and grit.

8. Cut (gems) - Wikipedia

   en.wikipedia.org/wiki/Cut_(gems)

   The diamond cut planning stage is a complex process that requires the cutter to work with unique rough stones. Very often, the location of the inclusions in a rough stone will determine the type of shape to which a diamond may be cut. For economic reasons, most diamonds are cut to retain weight instead of maximizing brilliance. [2]

9. Brilliant (diamond cut) - Wikipedia

   en.wikipedia.org/wiki/Brilliant_(diamond_cut)

   The modern round brilliant consists of 58 facets (or 57 if the culet is excluded), ordinarily today cut in two pyramids placed base to base: 33 on the crown (the top half above the middle or girdle of the stone), truncated comparatively near its base by the table, and 25 on the pavilion (the lower half below the girdle), which has only the apex ...