Diamond Simulants (Chapter 18, Key Terms & Key Concept) Flashcards
Any material that is
not diamond or lab-grown diamond, but
which imitates a diamond’s appearance and
is used in its place.
Diamond simulant
Two separate pieces of material
fused or cemented together to form a
single assembled stone.
Doublet
Gemstone or simulant with a thin
metallic foil or mirroring film applied to its
pavilion.
Foilback
A foilbacked, colorless, leadglass diamond imitation.
Rhinestone
Process of distinguishing
natural minerals and gems from each other
as well as from lab-grown gems, simulants,
and treated gems.
Separation
An instrument that
measures thermal conductivity to help
separate natural and lab-grown diamonds
from most simulants.
Thermal tester
Most problems with simulants arise when you
accept or represent them as diamonds.
Key Concept
Diamond simulants can be either natural or
manufactured, and they don’t have any of
diamond’s physical or chemical properties.
Key Concept
Diamonds have lower SG and higher thermal
conductivity than most simulants.
Key Concept
CZ is the most common of all the diamond
simulants.
Key Concept
The right attitude on your part will help your
clients or customers feel good about simulants.
Key Concept
Never sell a gem unless you’re absolutely sure of
its identity.
Key Concept
The best defense against false claims about
simulants is thorough knowledge and up-to-date
skills.
Key Concept
You should never take the identity of a gem or the
contents of a parcel for granted.
Key Concept
