and nomenclature are identical to what most respectable laboratories
use and are as follows:
Not Enhanced, Natural Color (N): This symbol or words
indicate that the gemstone is not currently known to be enhanced
or subject to any enhancements. This can be proven via gemological
laboratory or other methods. This nomenclature guarantees
the gem in question or your money back.
Enhanced (E): This symbols or words indicate that the
gemstone is routinely enhanced and impractical to prove otherwise.
To assume such enhancements were applied protects both the
buyer and seller. If gemological evidence suggests a more
specific method of enhancement, it will be mentioned by code.
(H): The use of heat under controlled conditions to improve
or remove color, clarity, and or phenomena. In most cases,
the result of heat treatment is permanent and widely used.
(Examples: Tanzanite, Ruby, Sapphire, and Aquamarine)
(R): The use of energy particles or electromagnetic waves
to alter a gemstone's color. In some cases the effect of radiation
can be unstable and reversed by heating.
(F): The filling of a surface-reaching cavity, pits, fissures,
fractures, or other voids with a foreign substance to improve
durability, appearance or add weight. (Example: Ruby)
/ Resin Infusion (O): The filling of a surface-reaching
cavity, fissure, fractures or other voids with wax, resin,
oil or other colorless substances to improve the gemstone's
appearance. (Example: Emerald)
(D): Introducing colored matter into a gemstone to give
it new color, improve color, or even color. (Example: Jade)
(*Note: We do not sell gemstones with this particular treatment)
Bulk Diffusion (BD): The process of using high temperature
in combination with chemicals to artificially produce a thin
layer of color and or asterism. (Example: Diffused Sapphire)
(*Note: We do not sell gemstones with this particular controversial