The process of insurance has been evolved to safeguard the interests of people from uncertainty by providing certainty of payment at a given contingency. The insurance principle comes to be more and more used and useful in modern affairs.
From Wikipedia, the free encyclopedia. Diamond clarity is a quality of diamonds relating to the existence and visual appearance of internal characteristics of a diamond called inclusions, and surface defects called blemishes. Clarity is one of the four Cs of diamond grading, the others being carat, color, and cut. Inclusions may be crystals of a foreign material or another diamond crystal, or structural imperfections such as tiny cracks that can appear whitish or cloudy.
Surface roughness. Surface roughness indicates the state of a machined surface. For example, when representing the surface of a component, surface roughness can be examined by eye or rubbed with a fingertip.Expressions used to describe surface roughness include shiny and pretty, lusterless and rough, like oxidized silver, or like a mirror..Those differences are caused by the differences in the irregularities of the component surfaces.urface roughness. Surface roughness indicates the state of a machined surface. For example, when representing the surface of a component, surface roughness can be examined by eye or rubbed with a fingertip.