GIA DIAMONDS AND DIAMOND GRADING EXAM 2
FINAL (2025) | QUESTIONS AND ANSWERS |
GRADED A+.
A "paper-worn" diamond is one that has -CORRECT ANSWER abrasions
A bourse is a(n) -CORRECT ANSWER diamond buying and selling club
A city, region, or country with a large number of gemstone manufacturers is called a -
CORRECT ANSWER cutting center
A clarity characteristic confined to the surface of a polished gemstone is called a(n) -
CORRECT ANSWER blemish
A commitment to reserve a portion of the resources derived from any country for the economic
development of that country is called -CORRECT ANSWER beneficiation
A common method of permanently changing the color of a diamond is -CORRECT ANSWER
irradiating
A diamond cutter's main objectives are to produce an attractive finished diamond and -
CORRECT ANSWER maximize profits
A diamond grading system provides -CORRECT ANSWER a consistent way to communicate
diamond quality
A diamond imitation that's foilbacked or composed of colorless lead-glass might be called a -
CORRECT ANSWER rhinestone
,A diamond with a thick girdle, steep crown, or deep pavilion represents poor value because -
CORRECT ANSWER it appears smaller face-up than its weight suggests
A diamond with variations in alignment probably also has -CORRECT ANSWER misshapen
facets
A diamond's clarity and color grades indicate its -CORRECT ANSWER quality
A diamond's physical shape, including its proportions and durability, determined by decisions
made during the fashioning process, is its -CORRECT ANSWER design
A diamond's recut style is largely determined by -CORRECT ANSWER its original cut
A faceting style that replaces the large bezel facets at the points of some diamonds with star
and upper half facets is called a -CORRECT ANSWER French tip
A feather that reaches a bezel surface as well as the surface of the pavilion main directly under
that bezel -CORRECT ANSWER should be plotted on both the crown and pavilion diagrams
A flat, triangular twinned diamond crystal is called a -CORRECT ANSWER macle
A gem with triangular and kite-shaped facets that radiate from its center toward its girdle is
called a -CORRECT ANSWER brilliant cut
A grooved, white, non-reflective tray is used to -CORRECT ANSWER match sets of stones
, A group of gems that's packaged together for sale or storage is called a -CORRECT ANSWER
parcel
A horizontal tunnel drilled through a diamond pipe is called a -CORRECT ANSWER drift
A knowledgeable, experienced, and successful diamond dealer or manufacturer is called a(n) -
CORRECT ANSWER diamantaire
A loose brown diamond should be color-graded -CORRECT ANSWER against a yellow
masterstone set
A loupe used for clarity grading must be corrected for chromatic and -CORRECT ANSWER
spherical distortion
A masterstone graded as whole grade represents the -CORRECT ANSWER least amount of
color possible in that grade's range
A mine's potential profitability depends in part on -CORRECT ANSWER its ore grade
A mounting makes it impossible to -CORRECT ANSWER accurately weigh a diamond
A naturally occurring, inorganic substance with a characteristic chemical composition and
usually a characteristic crystal structure is known as a -CORRECT ANSWER mineral
A notch scratched into diamond rough to prepare it for cleaving is called a -CORRECT
ANSWER kerf
FINAL (2025) | QUESTIONS AND ANSWERS |
GRADED A+.
A "paper-worn" diamond is one that has -CORRECT ANSWER abrasions
A bourse is a(n) -CORRECT ANSWER diamond buying and selling club
A city, region, or country with a large number of gemstone manufacturers is called a -
CORRECT ANSWER cutting center
A clarity characteristic confined to the surface of a polished gemstone is called a(n) -
CORRECT ANSWER blemish
A commitment to reserve a portion of the resources derived from any country for the economic
development of that country is called -CORRECT ANSWER beneficiation
A common method of permanently changing the color of a diamond is -CORRECT ANSWER
irradiating
A diamond cutter's main objectives are to produce an attractive finished diamond and -
CORRECT ANSWER maximize profits
A diamond grading system provides -CORRECT ANSWER a consistent way to communicate
diamond quality
A diamond imitation that's foilbacked or composed of colorless lead-glass might be called a -
CORRECT ANSWER rhinestone
,A diamond with a thick girdle, steep crown, or deep pavilion represents poor value because -
CORRECT ANSWER it appears smaller face-up than its weight suggests
A diamond with variations in alignment probably also has -CORRECT ANSWER misshapen
facets
A diamond's clarity and color grades indicate its -CORRECT ANSWER quality
A diamond's physical shape, including its proportions and durability, determined by decisions
made during the fashioning process, is its -CORRECT ANSWER design
A diamond's recut style is largely determined by -CORRECT ANSWER its original cut
A faceting style that replaces the large bezel facets at the points of some diamonds with star
and upper half facets is called a -CORRECT ANSWER French tip
A feather that reaches a bezel surface as well as the surface of the pavilion main directly under
that bezel -CORRECT ANSWER should be plotted on both the crown and pavilion diagrams
A flat, triangular twinned diamond crystal is called a -CORRECT ANSWER macle
A gem with triangular and kite-shaped facets that radiate from its center toward its girdle is
called a -CORRECT ANSWER brilliant cut
A grooved, white, non-reflective tray is used to -CORRECT ANSWER match sets of stones
, A group of gems that's packaged together for sale or storage is called a -CORRECT ANSWER
parcel
A horizontal tunnel drilled through a diamond pipe is called a -CORRECT ANSWER drift
A knowledgeable, experienced, and successful diamond dealer or manufacturer is called a(n) -
CORRECT ANSWER diamantaire
A loose brown diamond should be color-graded -CORRECT ANSWER against a yellow
masterstone set
A loupe used for clarity grading must be corrected for chromatic and -CORRECT ANSWER
spherical distortion
A masterstone graded as whole grade represents the -CORRECT ANSWER least amount of
color possible in that grade's range
A mine's potential profitability depends in part on -CORRECT ANSWER its ore grade
A mounting makes it impossible to -CORRECT ANSWER accurately weigh a diamond
A naturally occurring, inorganic substance with a characteristic chemical composition and
usually a characteristic crystal structure is known as a -CORRECT ANSWER mineral
A notch scratched into diamond rough to prepare it for cleaving is called a -CORRECT
ANSWER kerf
