Gemstones

Gemstones

Industry: Jewelry

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Gemstones

pear cut

Fashion; General jewelry

Resembling a pear or teardrop, this fancy cut is rounded on one end and pointed on the other.

phenomenal gems

Fashion; General jewelry

Gems that display unusual optical properties such as color change, chatoyancy, asterism or iridescence.

pigeon's blood

Fashion; General jewelry

Refers to the most prized color of red in rubies. Pigeon's blood red is thought to be a pure red with a hint of blue. It is associated most with rubies from Burma, though any ruby could be this ...

pleochroism

Fashion; General jewelry

The ability of certain gems to display two or more colors when viewed from different angles. This is a term also used for Dichroism and trichroism.

point

Fashion; General jewelry

A gemstone unit weight equal to 1/100 of a carat.

The portuguese cut refers to a particular type of faceting where the gem is cut with three rows (simple cut = two rows) of rhomboidal and two rows of triangular facets above the girdle (crown) and ...

precious (gemstone)

Fashion; General jewelry

Traditionally, the four precious gemstones are diamond, ruby, sapphire and emerald. But other gems have also been labelled precious at times, including opal and amethyst. Today, the distinction ...