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GIA DIAMONDS AND DIAMOND GRADING FINAL
EXAM NEWEST 2025/2026 COMPLETE ALL 180
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+||NEWEST
VERSION!!!
What magnification is used to assess clarity
characteristics' visibility? - ANSWER-10x
What clarity grade might result from tiny inclusions very
difficult to see at 10x magnifications? - ANSWER-VVS1 or
VVS2
What clarity grade has obvious inclusions at 10x
magnifications? - ANSWER-I1, I2, or I3
What type of clarity characteristics determine the clarity
grade of a dimaond? - ANSWER-Grade-setting
What characteristics are drawn only in green on a plot? -
ANSWER-Blemishes
What is a term that describes tone? - ANSWER-Degree of
darkness; lightness of a color
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What color becomes more prominent as warm hues
become less saturated? - ANSWER-Brown
What term falls on the GIA D-Z color scale? - ANSWER-
Colorless, near-colorless, faint, very light, light
What is the correlation between a mastertone and the
grade it represents? - ANSWER-Universal standard,
maintains consistency
Why must a diamond be re-examined under magnification
after color grading? - ANSWER-Confirm identity
What diamond size makes it easiest to see subtle color? -
ANSWER-The larger the diamond, the easiest it is to see
color
What results from averaging the sum of the smallest and
largest diameters of a round brilliant - ANSWER-Average
girdle diameter
How many crown angles on a round brilliant diamond
should be estimated before averaging? - ANSWER-8
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What weight retention method lightly polished lower half
facets? - ANSWER-Painting
What may result from a thick, unpolished girdle? -
ANSWER-Grey, reflection on the stone
How is a diamond positioned to estimate the lower half
facet length percentage? - ANSWER-Face up position
Why do diamonds with steep crowns offer less vaule? -
ANSWER-Look smaller face-up than weight suggest
What describes the polish quality and cut precision of a
diamond? - ANSWER-Craftmanship
What proportion greatly influences brightness in a round
brilliant diamonds? - ANSWER-Table percentage
How do steep pavilion angles affect appearance? -
ANSWER-Produce dark areas under the table
What parameters is measured at the belly of an oval? -
ANSWER-Width
GIA DIAMONDS AND DIAMOND GRADING FINAL
EXAM NEWEST 2025/2026 COMPLETE ALL 180
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+||NEWEST
VERSION!!!
What magnification is used to assess clarity
characteristics' visibility? - ANSWER-10x
What clarity grade might result from tiny inclusions very
difficult to see at 10x magnifications? - ANSWER-VVS1 or
VVS2
What clarity grade has obvious inclusions at 10x
magnifications? - ANSWER-I1, I2, or I3
What type of clarity characteristics determine the clarity
grade of a dimaond? - ANSWER-Grade-setting
What characteristics are drawn only in green on a plot? -
ANSWER-Blemishes
What is a term that describes tone? - ANSWER-Degree of
darkness; lightness of a color
,2|Page
What color becomes more prominent as warm hues
become less saturated? - ANSWER-Brown
What term falls on the GIA D-Z color scale? - ANSWER-
Colorless, near-colorless, faint, very light, light
What is the correlation between a mastertone and the
grade it represents? - ANSWER-Universal standard,
maintains consistency
Why must a diamond be re-examined under magnification
after color grading? - ANSWER-Confirm identity
What diamond size makes it easiest to see subtle color? -
ANSWER-The larger the diamond, the easiest it is to see
color
What results from averaging the sum of the smallest and
largest diameters of a round brilliant - ANSWER-Average
girdle diameter
How many crown angles on a round brilliant diamond
should be estimated before averaging? - ANSWER-8
, 3|Page
What weight retention method lightly polished lower half
facets? - ANSWER-Painting
What may result from a thick, unpolished girdle? -
ANSWER-Grey, reflection on the stone
How is a diamond positioned to estimate the lower half
facet length percentage? - ANSWER-Face up position
Why do diamonds with steep crowns offer less vaule? -
ANSWER-Look smaller face-up than weight suggest
What describes the polish quality and cut precision of a
diamond? - ANSWER-Craftmanship
What proportion greatly influences brightness in a round
brilliant diamonds? - ANSWER-Table percentage
How do steep pavilion angles affect appearance? -
ANSWER-Produce dark areas under the table
What parameters is measured at the belly of an oval? -
ANSWER-Width
