2 Terms
Contributors in Gemstones
Gemstones
moissanite
Fashion; General jewelry
lab-created diamond simulant based on the structure of natural moissanite. On Mohs' scale of hardness, moissanite is 9.5. It has more brilliance, fire and luster than any hard jewel on earth, ...
oiling
Fashion; General jewelry
iling infuses colorless oils, resins or waxes into tiny surface-breaking fissures to hide them and give certain gemstones a cleaner appearance. This long-practiced clarity enhancement is used mainly ...
opaque
Fashion; General jewelry
term used for gemstones that you cannot see any light passing through the gem. Lapis and malachite are an example of this.
organic gemstone
Fashion; General jewelry
Most gemstones are minerals with a crystal structure but some gems, such as amber and pearl, are organic rather than mineral, being formed by plants and animals. See also Amorphous gemstones.
padparadscha
Fashion; General jewelry
Derived from the Sinhalese term for "lotus flower," padparadscha refers to a lush pink and orange sapphire resembling the color of the lotus. Padparadscha is also sometimes used to refer to other ...
paraiba
Fashion; General jewelry
A rare copper-bearing tourmaline with an intense blue or blue-green color, first found in the state of Paraiba in Brazil in 1989. There have been recent finds in Nigeria and Mozambique of similar ...
pavilion
Fashion; General jewelry
The lower portion of a gemstone that begins just below the girdle.
