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15 Cards in this Set
- Front
- Back
A reflector is the result of the inclusion’s
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position |
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Blemishes don’t usually affect the clarity grade in diamonds below
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IF |
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The more an inclusion differs in color from its host diamond,
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the more obvious it is.
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A feather that reaches a bezel surface as well as the surface of the pavilion main directly under that bezel
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should be plotted on both the crown and pavilion diagrams. |
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A stone with only a few extra facets on its pavilion that can’t be seen face-up should be graded
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IF |
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VS1 and VS2 stones would be expected to have
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minor included crystals and feathers |
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One factor used to determine the clarity grade of a diamond is an inclusion’s
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location |
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In a stone with these clarity characteristics, which would probably be the grade-setting characteristic?
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Feather |
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Diamonds with minute inclusions that are difficult for even a skilled grader to see under 10X are classified
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VVS1 or VVS2. |
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Inclusions are usually most visible when they’re located
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directly under the table.
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A round brilliant-cut VVS diamond could have
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a small pinpoint under a lower girdle facet. |
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The designation SI means
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Slightly Included. |
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Which of these would disqualify a stone from being graded IF?
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Pinpoint |
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On a plot, drawing a characteristic only in green indicates that it’s
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a blemish
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In most cases, the easier it is to see a clarity characteristic, the
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lower the clarity grade.
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