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GIA Colored Stone Final Exam Questions and
Answers Already Graded A+. 100% Verified Solutions
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What country buys about half of the blue sapphires on the
world market? - Answer-USA
Kashmir sapphires owe their reputation to a brief period of
output during what time period? - Answer-1880s
What country is a major center of the corrundum trade,
funneling a steady flow of gems from worldwide sources
into the consumer market? - Answer-Thailand
What country is the world's largest source of dark blue,
commercial quality blue sapphires? - Answer-Australia
What country has become a significant source of good to
fine qualtiy blue sapphires? - Answer-Madagascar
The most common sapphire synthesis method - Answer-
Flame fusion
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Milky, greyish, or brownish corundum that can be treated
to a fine blue color - Answer-Geuda
Color of fine blue sapphire - Answer-Blue to violetish blue
Blue sapphires that orginate in basaltic rock generally
have a... - Answer-Higher iron content
Finer quality Kashmir blue sapphires typically show what
type of appearance? - Answer-Velvety
"Inky" sapphires generally originate from... - Answer-
Australia
Most fine sapphires over 100 cts. come from what
country? - Answer-Sri Lanka
What country emerged in the 1990s as a significant
source of fine to good quality saphhire? - Answer-
Madagascar
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What country is the world's largest blue saphhire exporter?
- Answer-Thailand
The sapphire market level supplied by Switzerland is -
Answer-Upper
When did Madagascar become a significant source of blue
sapphire? - Answer-1990s
What location supplies sapphires that are most likely not
heat-treated? - Answer-Yogo Gulch
A Kashmir sapphire's blue is also known as - Answer-
Cornflower blue
A Burmese sapphire's blue is known as ______ blue and
is considered somewhat _______. - Answer-Royal; inky
The "Ceylon" or "Sri Lanka" sapphire's saturation is
______ and ______.
The tone is ______ to ______. - Answer-Greyish and
strong saturation
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Light to medium light tone
The "Palin" or "Cambodian" sapphires are typically ______
to ______ in color and look best when fashioned into
smaller sizes. - Answer-Violetish blue to slightly greenish
blue
The "Kanchanaburi" sapphires are less saturated and are
gererally ______ to ______ in color with a ______ to
______ tone.
Minute inclusions cause it to have a greyish appearance.
(Similar to Sri Lanka, but not as brilliant) - Answer-Blue to
greenish blue color
Light to dark tone
Velvety blue to violetish blue, in medium to medium-dark
tones, with strong to vivid saturation - Answer-Fine
sapphire
What trace elements cause the blue of sapphire? -
Answer-Iron and titanium
GIA Colored Stone Final Exam Questions and
Answers Already Graded A+. 100% Verified Solutions
||Verified Exam!!!|| Updated Per Latest Guidelines |
Graded A+||Newest Exam!!!
What country buys about half of the blue sapphires on the
world market? - Answer-USA
Kashmir sapphires owe their reputation to a brief period of
output during what time period? - Answer-1880s
What country is a major center of the corrundum trade,
funneling a steady flow of gems from worldwide sources
into the consumer market? - Answer-Thailand
What country is the world's largest source of dark blue,
commercial quality blue sapphires? - Answer-Australia
What country has become a significant source of good to
fine qualtiy blue sapphires? - Answer-Madagascar
The most common sapphire synthesis method - Answer-
Flame fusion
,2|Page
Milky, greyish, or brownish corundum that can be treated
to a fine blue color - Answer-Geuda
Color of fine blue sapphire - Answer-Blue to violetish blue
Blue sapphires that orginate in basaltic rock generally
have a... - Answer-Higher iron content
Finer quality Kashmir blue sapphires typically show what
type of appearance? - Answer-Velvety
"Inky" sapphires generally originate from... - Answer-
Australia
Most fine sapphires over 100 cts. come from what
country? - Answer-Sri Lanka
What country emerged in the 1990s as a significant
source of fine to good quality saphhire? - Answer-
Madagascar
,3|Page
What country is the world's largest blue saphhire exporter?
- Answer-Thailand
The sapphire market level supplied by Switzerland is -
Answer-Upper
When did Madagascar become a significant source of blue
sapphire? - Answer-1990s
What location supplies sapphires that are most likely not
heat-treated? - Answer-Yogo Gulch
A Kashmir sapphire's blue is also known as - Answer-
Cornflower blue
A Burmese sapphire's blue is known as ______ blue and
is considered somewhat _______. - Answer-Royal; inky
The "Ceylon" or "Sri Lanka" sapphire's saturation is
______ and ______.
The tone is ______ to ______. - Answer-Greyish and
strong saturation
, 4|Page
Light to medium light tone
The "Palin" or "Cambodian" sapphires are typically ______
to ______ in color and look best when fashioned into
smaller sizes. - Answer-Violetish blue to slightly greenish
blue
The "Kanchanaburi" sapphires are less saturated and are
gererally ______ to ______ in color with a ______ to
______ tone.
Minute inclusions cause it to have a greyish appearance.
(Similar to Sri Lanka, but not as brilliant) - Answer-Blue to
greenish blue color
Light to dark tone
Velvety blue to violetish blue, in medium to medium-dark
tones, with strong to vivid saturation - Answer-Fine
sapphire
What trace elements cause the blue of sapphire? -
Answer-Iron and titanium
