GIA Diamonds and Diamond Grading 10-12 Exam Solved Correctly To ScorA+

GIA Diamonds and Diamond Grading 10-12 Exam Solved
Correctly To Sco A+

1. The inclusion called bearding consists of
C.
tiny A.
feathers.
knots.
B.
needles
. C.
feather
s. D.
grain lines.

2. With darkfield illumination, light is directed
C.
into the stone from
the side.
A.
below
. B.
abov
e.
C.
the
side.
D.
all directions. B.
darkfield illumination.
3. Inclusions are easier to see
using A.
ultraviolet
light. B.
darkfield
illumination. C.
overhead spot
lighting. D.
overhead fluorescent lighting.
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, GIA Diamonds and Diamond Grading 10-12 Exam Solved
Correctly To Sco A+

4. A solid mineral body enclosed within a k
diamond (or other gem) is n
A. o
a t
knot. .
B. D
.
a
natural. laser drill-
hole.
C.
internal
graining. D.
an included crystal.

5. Trigons
are A.
drag lines.
B.
color
centers. C.
growth
marks. D.
twinning planes.

6. An included diamond crystal that extends to
the sur- face of a fashioned diamond is
called a
A.
pit
.
B.
chip
.
C.
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, GIA Diamonds and Diamond Grading 10-12 Exam Solved
Correctly To Sco A+

D.
an included crystal.




C.
growth marks.




C.
knot.




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