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Knowledge Base:  
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Common Gemstone Cuts
Last Updated 4/25/2009
Cabochon

Dome shape polished gemstone. One side of the stone is flat and the other is in dome shape.

Round Amethyst Cabochon Gemstones a.k.a. Round Cab Amethyst Gemstones
Round Amethyst cabochons

Rose Cut

Rose Cut - The stone is cut in way that its bottom is flat and the top is faceted.


Rose Cut Round faceted Smoky Quartz gemstone
Round faceted Smoky Quartz gemstone

Emerald Cut / Octagon Cut

Square or rectangle shaped stones with truncated corners. Facets run in steps parallel to the gemstone circumference.


Iolite, Emerald and Ruby, emerald-cut gemstones
Left to right: Iolite, Emerald and Ruby, emerald-cut gemstones

Faceted

Faceted - Gemstone cut in a way to include many facets. The multiple facets structure increases light reflection and gives the stone a bright and shining look.

Faceted oval Citrine gemstones
Faceted oval Citrine gemstones
Faceted Crystal and Blue Goldstone beads
Faceted Crystal and Blue Goldstone beads

Brilliant Cut / Diamond Cut

The most famous faceted cut used for round gemstones. The stone is cut with 58 facets in a special geometry for very high light reflection. The incident light enters the stone through the flat top surface, circulates within the stone and reflected back from the top surface. Commonly used for diamonds.

Brilliant cut (a.k.a. Diamond Cut) Blue Topaz and Iolite gemstones
Brilliant cut Blue Topaz and Iolite gemstones



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