GIA Diamonds and Diamond
Grading Assignment 10
Questionnaire Exam Question &
Answers 2025
What must be listed first on the Key to Symbols? -
CORRECT ANSWERS ✔✔Laser drill-holes
The grader lists the characteristics in order of
importance. When present, laser drill-holes are listed first
to ensure clear disclosure of the treatment. Grade-setting
inclusions are listed next, followed by other inclusions in
the order of their severity. Naturals and extra facets are
listed last. See "Plotting" in Diamonds & Diamond Grading
Assignment 10.
What is considered in addition to the five factors when
assigning a clarity grade? - CORRECT ANSWERS
✔✔Diamond size and shape
The size and shape of the diamond is also a factor. If
there are two inclusions of equal size, but one is in a
0.25-ct. diamond and the other is in a 1.00-ct. diamond,
they will have different impacts on the clarity grade of
each stone. See "The Philosophy of Clarity Grading" in
Diamonds & Diamond Grading Assignment 10.
, GIA Diamonds and Diamond
Grading Assignment 10
Questionnaire Exam Question &
Answers 2025
What should be included when judging the number of
clarity characteristics? - CORRECT ANSWERS
✔✔Reflections
Because a diamond's facets act like mirrors, inclusions
might be reflected multiple times. Even when a small
inclusion is only somewhat easy to see, reflections can
make it more apparent. See "Number" in Diamonds &
Diamond Grading Assignment 10.
What are clarity characteristics that don't affect the
clarity grade called? - CORRECT ANSWERS ✔✔Non-
callable
A callable characteristic is one that affects clarity. These
are visible at 10x magnification. A non-callable
characteristic is one that does not affect clarity and can
therefore exist on a Flawless diamond. These include
inclusions and blemishes visible only at a magnification
higher than 10x, also referred to as "+10x." See "Clarity
Grading Procedure" in Diamonds & Diamond Grading
Assignment 10.
Grading Assignment 10
Questionnaire Exam Question &
Answers 2025
What must be listed first on the Key to Symbols? -
CORRECT ANSWERS ✔✔Laser drill-holes
The grader lists the characteristics in order of
importance. When present, laser drill-holes are listed first
to ensure clear disclosure of the treatment. Grade-setting
inclusions are listed next, followed by other inclusions in
the order of their severity. Naturals and extra facets are
listed last. See "Plotting" in Diamonds & Diamond Grading
Assignment 10.
What is considered in addition to the five factors when
assigning a clarity grade? - CORRECT ANSWERS
✔✔Diamond size and shape
The size and shape of the diamond is also a factor. If
there are two inclusions of equal size, but one is in a
0.25-ct. diamond and the other is in a 1.00-ct. diamond,
they will have different impacts on the clarity grade of
each stone. See "The Philosophy of Clarity Grading" in
Diamonds & Diamond Grading Assignment 10.
, GIA Diamonds and Diamond
Grading Assignment 10
Questionnaire Exam Question &
Answers 2025
What should be included when judging the number of
clarity characteristics? - CORRECT ANSWERS
✔✔Reflections
Because a diamond's facets act like mirrors, inclusions
might be reflected multiple times. Even when a small
inclusion is only somewhat easy to see, reflections can
make it more apparent. See "Number" in Diamonds &
Diamond Grading Assignment 10.
What are clarity characteristics that don't affect the
clarity grade called? - CORRECT ANSWERS ✔✔Non-
callable
A callable characteristic is one that affects clarity. These
are visible at 10x magnification. A non-callable
characteristic is one that does not affect clarity and can
therefore exist on a Flawless diamond. These include
inclusions and blemishes visible only at a magnification
higher than 10x, also referred to as "+10x." See "Clarity
Grading Procedure" in Diamonds & Diamond Grading
Assignment 10.
