Gemstones

Gemstones

Industry: Jewelry

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Gemstones

specific gravity

Fashion; General jewelry

see density

step cut

Fashion; General jewelry

A gem cut with rectangular facets along the perimeter.

swiss cut

Fashion; General jewelry

A gem cut consisting of thirty-three facets.

synthetic (gemstone)

Fashion; General jewelry

A synthetic gemstone is man-made rather than mined from the earth. Natural gemstones which are treated by industry-accepted methods such as heat or irradiation are not classified as synthetic.

table

Fashion; General jewelry

The flat top part of a gemstone. The table is the largest facet.

tone

Fashion; General jewelry

One of 3 characteristics used to describe the appearance of color. Tone refers to the lightness or value of the lightness in a particular stone. See also Saturation and Hue.