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Questions and Answers
What is the term for the basic color of a gemstone determined by its selective absorption of light?
What is the term for the degree of darkness or lightness of a color?
What is the term for areas of different color in a gemstone caused by variations in growth conditions?
What is the term for the selection of colors in which a gemstone occurs?
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What is the term for the strength or intensity of a color?
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What is the term for dark areas in a faceted transparent colored stone?
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What is the term for visible face-up color zoning that was planned during the cutting process?
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What is the term for light that exits through a gem’s crown in a controlled way due to the correct proportions of its cut?
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What is the term for an area of weak saturation in a transparent gemstone’s bodycolor?
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Which of the following colors is considered most desirable by the trade?
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What causes unintended color zoning in a gemstone?
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What is the result of unplanned light leakage in a gemstone?
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What term is used to describe a gemstone's link to a specific geographic location?
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What is the purpose of intended color zoning in a gemstone?
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What happens when a gemstone is cut incorrectly?
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What is the term for the color that a gemstone appears to be at first glance?
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What is the result of a gemstone being cut with the correct proportions?
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What is the term for a gemstone's color range?
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Study Notes
Color Terminology
- Bodycolor refers to a gemstone's basic color, determined by its selective absorption of light.
- Saturation is a measure of a color's strength or intensity.
- Color range refers to the selection of colors in which a gemstone occurs.
- Tone is the degree of darkness or lightness of a color.
- Color zoning refers to areas of different color in a gem, caused by variations in growth conditions.
Trade Terms and Color Descriptions
- Trade terms are used in the jewelry industry to describe particular gemstone colors or link gems with specific geographic locations.
- Fine color refers to the color or colors in a gemstone's color range considered by the trade to be the most desirable.
- Hue is the first impression of an object's basic color.
Optical Phenomena
- Extinction refers to dark areas in a faceted transparent colored stone.
- Unintended color zoning refers to visible face-up color zoning that the cutter was unable to conceal.
- Intended color zoning refers to visible face-up color zoning that was planned during the cutting process.
- Unplanned light leakage refers to light that exits through the pavilion in an uncontrolled way due to compromises in a gem's proportions.
- Planned light leakage refers to light that exits through a gem's crown in a controlled way due to the correct proportions of its cut.
- Window refers to an area of weak saturation in a transparent gemstone's bodycolor that usually results from the way the gem was cut.
Color Terminology
- Bodycolor refers to a gemstone's basic color, determined by its selective absorption of light.
- Saturation is a measure of a color's strength or intensity.
- Color range refers to the selection of colors in which a gemstone occurs.
- Tone is the degree of darkness or lightness of a color.
- Color zoning refers to areas of different color in a gem, caused by variations in growth conditions.
Trade Terms and Color Descriptions
- Trade terms are used in the jewelry industry to describe particular gemstone colors or link gems with specific geographic locations.
- Fine color refers to the color or colors in a gemstone's color range considered by the trade to be the most desirable.
- Hue is the first impression of an object's basic color.
Optical Phenomena
- Extinction refers to dark areas in a faceted transparent colored stone.
- Unintended color zoning refers to visible face-up color zoning that the cutter was unable to conceal.
- Intended color zoning refers to visible face-up color zoning that was planned during the cutting process.
- Unplanned light leakage refers to light that exits through the pavilion in an uncontrolled way due to compromises in a gem's proportions.
- Planned light leakage refers to light that exits through a gem's crown in a controlled way due to the correct proportions of its cut.
- Window refers to an area of weak saturation in a transparent gemstone's bodycolor that usually results from the way the gem was cut.
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Description
Test your knowledge of gemstone colors, including body color, saturation, tone, and color zoning. Learn about trade terms used in the jewelry industry.
