Man Made Diamond Information Glossary
Boule
- A synthetic single-crystal mass grown in a furnace.
Carat - The unit of weight by which a diamond is measured. One
carat equals 200 milligrams.
Chemical
vapor deposition (CVD) - A process to deposit a layer of a
material from a gaseous phase onto a surface.
Crucible - A vessel made of material that does not melt easily;
used for high temperature applications.
Crystal - Any solid material in which the component atoms are
arranged in a definite pattern and whose surface regularity reflects its
internal symmetry.
Cubic
Zirconia (CZ) - Zirconium oxide (ZrO2), a mineral
that is extremely rare in nature but is widely synthesized for use as a
diamond simulant. (Wikipedia)
Diamond wafer - A flat piece of diamond upon which
microprocessors can be carved.
Feathers - The small stress fractures in a diamond formed during
its crystallization process.
Fire - Colored light reflected from within a diamond.
High
pressure, high temperature (HPHT) - A process that forms
crystals in an environment of very high pressure and temperature.
Inclusions - Internal imperfections within a diamond.
Kilo pascal (kPa) - One thousand newtons per square meter.
Micron - One millionth of a meter.
Mohs hardness scale - A scale that ranges from 1-10 in measuring
a gem's hardness.
Moissanite
- Moissanite is a trade name name given to silicon carbide (chemical
formula SiC) for use in the gem business. (Wikipedia)
Multi-crystalline - A mineral made up of more than one crystal. A
diamond is a single crystal.
Newton - The unit of force giving a mass of one kilogram an
acceleration of about one meter per second per second.
Refractive index (RI) - The speed of light in a vacuum as opposed
to its speed in a medium.
Seed crystal - A small piece of single crystal mineral from which
a large crystal is to be grown.
Substrate - The surface or medium that serves as a base for
something.
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