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2. Cut (gems) - Wikipedia

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

   [1] Among the several techniques used to work with gemstones are sawing, grinding, sanding, lapping, polishing, grilling, and tumbling. 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 ...

3. Stonesetting - Wikipedia

   en.wikipedia.org/wiki/Stonesetting

   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.

4. Diamond cutting - Wikipedia

   en.wikipedia.org/wiki/Diamond_cutting

   The radiant cut is an example of this type of cut. Natural green color diamonds most often have merely a surface coloration caused by natural irradiation, which does not extend through the stone. For this reason green diamonds are cut with significant portions of the original rough diamond's surface (naturals) left on the finished gem.

5. Asprey - Wikipedia

   en.wikipedia.org/wiki/Asprey

   The cushion cut gave Tolkowsky options for incorporating the Asprey "A" inscription around the edges of the stone. The result was the 61-facet Asprey cut, maximising light refraction to brilliant effect. Carat weights of Asprey-cut diamonds range from 0.50 to 3. Asprey-cut diamonds are inscribed on one side of the cushion with the GIA ...

6. Lapidary - Wikipedia

   en.wikipedia.org/wiki/Lapidary

   Positioning rough stone in a holder, and holding the stone against the edge of a revolving saw or lapidary slitter impregnated with diamond dust to cut and slit stone. Removing cut stone and placing it in lapidary stick. A gemcutter then selects the shaping wheel and applies abrasive compound.

7. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   Neither of these changes makes the diamond appear any larger, and both greatly reduce the sparkle of the diamond. (A poorly cut 1.0-carat (200 mg) diamond may have the same diameter and appear as large as a 0.85-carat (170 mg) diamond.) The depth percentage is the overall quickest indication of the quality of the cut of a round brilliant ...