1|Page
GIA COLORED STONE FINAL EXAM QUESTIONS
WITH 100% VERIFIED SOLUTIONS
Rough that's ground to the approximate shape of the finished stone is called -
correct-answer-preform
Cutters can darken color of pale stones by cutting a - correct-answer-deep pavilion
Colored stones cut flat with shallow pavilions usually have areas of lower color
intensity called - correct-answer-windows
A carved design that projects slightly from a flat or curved surface is a(n) - correct-
answer-cameo
Which cutting stage has the greatest impact on the value of the finished gem -
correct-answer-preform
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To retain as much weight as possible from rare high quality rough, cutters would
most likely vary - correct-answer-proportions
Which type of rough is usually faceted - correct-answer-transparent
To judge brilliance, view the stone - correct-answer-face up
Removing heavily included sections from gemstone rough by carefully tapping it
with a small hammer is known as - correct-answer-cobbing
Which colored stone variety has cutting challenges due to vulnerable cleavage
planes - correct-answer-tanzanite
When viewed face up, a stone with more than 75% brilliance is considered to have
- correct-answer-excellent proportions
Two factors to determine an inclusion's impact on a gem's value are - correct-
answer-position and relief
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Growth zoning in a colored stone is evidence of - correct-answer-crystal growth
A general term for a break in a stone is - correct-answer-feather
An inclusion with the most negative impact on a colored stone's clarity would be
located - correct-answer-under the table
An angular, hollow space that resembles a mineral inclusion is called a - correct-
answer-negative crystals
A characteristic or irregularity confined to the surface of a polished gemstone is a -
correct-answer-blemish
Inclusions are important to gemologists because they - correct-answer-can help
separate natural from synthetic gems
The term "silk" describes - correct-answer-a group of fine, needle-like inclusions
, 4|Page
The highest clarity grade for colored stones is - correct-answer-eye clean
In which of the following colored stone clarity grades do the definitions very for
each clarity type - correct-answer-moderately included
Gems that are usually eye clean inside - correct-answer-spodumene, yellow beryl,
and aquamarine
Fingerprints are - correct-answer-partially healed fracture planes
Which of these gems is classified as Type III - correct-answer-emerald
In which colored stone clarity type are gems usually eye-clean - correct-answer-
type I
GIA COLORED STONE FINAL EXAM QUESTIONS
WITH 100% VERIFIED SOLUTIONS
Rough that's ground to the approximate shape of the finished stone is called -
correct-answer-preform
Cutters can darken color of pale stones by cutting a - correct-answer-deep pavilion
Colored stones cut flat with shallow pavilions usually have areas of lower color
intensity called - correct-answer-windows
A carved design that projects slightly from a flat or curved surface is a(n) - correct-
answer-cameo
Which cutting stage has the greatest impact on the value of the finished gem -
correct-answer-preform
,2|Page
To retain as much weight as possible from rare high quality rough, cutters would
most likely vary - correct-answer-proportions
Which type of rough is usually faceted - correct-answer-transparent
To judge brilliance, view the stone - correct-answer-face up
Removing heavily included sections from gemstone rough by carefully tapping it
with a small hammer is known as - correct-answer-cobbing
Which colored stone variety has cutting challenges due to vulnerable cleavage
planes - correct-answer-tanzanite
When viewed face up, a stone with more than 75% brilliance is considered to have
- correct-answer-excellent proportions
Two factors to determine an inclusion's impact on a gem's value are - correct-
answer-position and relief
,3|Page
Growth zoning in a colored stone is evidence of - correct-answer-crystal growth
A general term for a break in a stone is - correct-answer-feather
An inclusion with the most negative impact on a colored stone's clarity would be
located - correct-answer-under the table
An angular, hollow space that resembles a mineral inclusion is called a - correct-
answer-negative crystals
A characteristic or irregularity confined to the surface of a polished gemstone is a -
correct-answer-blemish
Inclusions are important to gemologists because they - correct-answer-can help
separate natural from synthetic gems
The term "silk" describes - correct-answer-a group of fine, needle-like inclusions
, 4|Page
The highest clarity grade for colored stones is - correct-answer-eye clean
In which of the following colored stone clarity grades do the definitions very for
each clarity type - correct-answer-moderately included
Gems that are usually eye clean inside - correct-answer-spodumene, yellow beryl,
and aquamarine
Fingerprints are - correct-answer-partially healed fracture planes
Which of these gems is classified as Type III - correct-answer-emerald
In which colored stone clarity type are gems usually eye-clean - correct-answer-
type I
