Treatments:
The GIA
definition of a treatment is "any human controlled process that improves
the appearance, durability, or value
of a gem." Treatments include
temperature, irradiation, chemicals, or surface modifications.
Section 23.22 in the Federal Trade
Commission Guides, "Deception as to
Gemstones:"
|
"It
is unfair or deceptive to fail to disclose that a gemstone
has been treated
in any manner that is not permanent or that creates special care
requirements, and to fail to disclose that the
treatment is not permanent, if
such is the case. The following are examples of treatments that should be
disclosed because they
usually are not permanent or create special care
requirements: coating, impregnation, irradiating, heating, use of nuclear
bombardment,
application of colored or colorless oil or epoxy-like resins,
wax, plastic, or glass, surface diffusion, or dyeing." |
