The clarity scale is used to describe how few inclusions a gemstone has For diamonds, the clarity scale ranges from flawless (FL), meaning a gemstone has no internal or external flaws, to severely included (I3), meaning there are many flaws clearly visible to the unaided eye
The state, or measure of being clear, either in appearance, thought or style; lucidity
A major goals of the FPS programme is the development of communication skills teams will be scored on their clarity in Step One - ie, their ability to clearly communicate their ideas
how far sunlight will penetrate into water for plant growth; limited by plankton, sediment particles, water color, etc; measured with a secchi disk
The degree of insoluble material removed from a feedstock Clarity is usually measured by optically based methods
A diamond's relative position on a flawless to imperfect scale Clarity characteristics are classified as inclusions (internal) or blemishes (external) The size, number, position, nature, and color or relief of characteristics determine the clarity grade Very few diamonds are flawless, that means, show no inclusions or blemishes when examined by a skilled grader under 10X magnification If other factors are equal, flawless diamonds are most valuable
The presence or absence of inclusions within the diamond and blemishes on its surfaces These slight birthmarks of nature generally do not affect the beauty of a stone, but they almost always affect its price When a diamond is examined, the size, type, position, number, color, and relief of clarity features are observed The diamond is always viewed with the trained unaided eye to check for relative visibility of clarity features
Overhanging or instream structures (such as tree roots, undercut streambanks, or boulders) that offer protection from predators, shelter from strong currents, and/or shading