February 19, 2015
COLORED GEMSTONE CLARITY GRADING
CLARITY: Clarity is the second most important factor in colored gemstones.
The guidelines used for clarity in a diamonds and colored gemstones are different. Colored gemstones have more inclusions than diamonds, are not so neat, and there are certain gemstones that hardly ever appear clean.
MdMaya Gems uses the following clarity scale when grading gemstones.
Sometimes these inclusions are what make stones valuable (silks in rubies, the cat's eye effect in the alexandrite, etc.).
Setting aside translucent and opaque gemstones, the first classification to take into account is:
EYE CLEAN: Appears clean to the unaided eye. (Type 1, 2 and 3)
HEAVILY included: prominent inclusions that have a negative effect on appearance or durability.
SEVERELY INCLUDED: prominent inclusions that have a severe effect on appearance or durability or both. (Type 1, 2 and 3).
A clear example: Whilst in aquamarines the term slightly means that they show really small inclusions that are very difficult for the naked eye to notice (without using a magnifying glass), when talking about emeralds slighty means notable sized inclusions that can be easily seen.
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March 01, 2019
Aquamarine Buying Guide.
Aquamarine Gemstone Information: Discover this blue green gem, cut, sizes, clarity, genesis, famous aquamarines, birthstone of march and more information.
February 01, 2019
Beautiful purple variety of quartz, its color can range from a pale lilac to deep purple. This purple gemstone is the Birthstone of February.
The name meaning of Amethyst comes from a Greek word Amethystos (not intoxicated).
La amatista es la variedad púrpura del cuarzo transparente y su color puede variar de un lila pálido a un púrpura intenso. Esta piedra preciosa es la gema natal de Febrero y está asociada al signo zodiacal Piscis.
Su nombre procede de la palabra griega AMETHYSTOS que significa no intoxicada / sobria.