Cabochon - Dome shape polished gemstone. One side of the stone is flat and the other is in dome shape.
Round Amethyst cabochons
Rose Cut - The stone is cut in a way that its bottom is flat and the top is faceted.
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.
Left to right: Iolite, Emerald and Ruby, emerald-cut gemstones
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 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 reflects it back from the top surface. Commonly used for diamonds.