Clarity

Clarity plotting is to judged in terms of both inclusion and blemishes.

Clarity : Penetrating or enclosed within the Gem.

Blemish : Strictly to/on the surface of the Gem

Five(5) Factor system of explaining Gems pricing.

• Size of inclusion.
• Location (position)
• Quantity (Number) of inclusion
• Type (of inclusion) :
• Contrast (relief & color) :

Inclusion :

Some descriptive words that are occasionally used:

Included Crystal :	a solid crystal or a liquid like, often angular inclusion.
Chip :	Small damaged area (usually at the girdle)
Indented natural :	A dark included crystal or a hole opening inside a Gem.
Cloud :	Any hazy or milky area inside the gem.
Feather or fingerprint :	A partially healed fracture or fissure, or a group of small particles trapped during the natural growth process or synthesis.
Pinpoint :	Very small, light or dark included crystal (occurring as a dot or dots)
Needle:	Thin rod-like crystal inclusion or a fine parallel silk inclusion.
Nick :	a Small opening or damaged on a polished surface ( at the girdle of Gem).
Bruise :	Surface crumbling, often accompanied by tiny, root-like feathers.
Cavity :	A large or deep opening.
Horse-tail or pony-tail:	Fibrous inclusions radiating from a nucleus in demantoid garnet.
Snowflake:	Whitish crystallites on a dark background in obsidian.