Exam (elaborations)
GIA COLORED STONES ASSIGNMENT 8 QUESTIONS AND ANSWERS
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GIA COLORED STONES ASSIGNMENT 8 QUESTIONS AND ANSWERS
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Name: Score:45 Multiple choice questions
Definition 1 of 45
An area of weak saturation in a transparent gemstone's bodycolor that usually results from the
way the gem was cut.
window
door
color zoning
wall
Definition 2 of 45
You should judge a gemstone's beauty and value only by comparing it with others of its own
___________ or ___________.
species or variety
size or shape
color or clarity
weight or cut
Definition 3 of 45
The color of the background for grading a colored stone should be _____________.
textured
bright
dark
neutral
,Definition 4 of 45
Light that exits through a gem's crown in a controlled way due to the correct proportions of its
cut.
saturation
planned light leakage
fine color
color zoning
Definition 5 of 45
In general, attractive colored stones tend to have highly saturated _______ and medium to
medium-dark _______.
hues tone
lightness shade
brightness level
darkness value
Definition 6 of 45
If rough is very valuable, cutters often compromise on ______________ to save weight and avoid loss
of money.
clarity grade
color depth
proportions
cut style
,Definition 7 of 45
What two coloring agents are usually responsible for color change in gemstones?
cobalt and titanium
chromium and vanadium
iron and titanium
copper and iron
Definition 8 of 45
Know a gem's _____________ before you grade it.
cut quality
size category
identity
market value
Definition 9 of 45
Dark areas in a faceted transparent colored stone.
extinction
discrimination
saturation
negative reinforcement
Definition 10 of 45
The cutter's main goal is to produce a stone with the highest possible __________.
clarity
weight
size
value
, Definition 11 of 45
Generally, cool-colored hues with low saturation look _____________.
grayish
vibrant
translucent
metallic
Definition 12 of 45
What type of lighting is best for grading color in a colored stone?
high red content
daylight-equivalent fluorescent
halogen
incandescent
Definition 13 of 45
Higher levels of saturation are usually found in stones with __________ __ __________-________ ________.
light to light-medium tone
hues tone
bright to vivid tone
medium to medium-dark tone
Definition 14 of 45
Areas of different color in a gem, caused by variations in growth conditions.
face-up color
color center
color zoning
color range
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