GIA Colored Stones Assignment 15: Emeralds with Complete Solutions!
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Course
GIA Colored Stones
Institution
GIA Colored Stones
The most desirable emerald colors are _________ green to green, with strong to _________ saturation and __________ to medium-dark h, vivid, medium - ANSWER - bluish, vivid, medium
The trade considers emerald to have the finest _________ among colored stones. - ANSWER - green
Slight difference...
GIA Colored Stones Assignment
15: Emeralds with Complete
Solutions!
The most desirable emerald colors are _________ green to green, with strong to
_________ saturation and __________ to medium-dark tone.bluish, vivid, medium -
ANSWER - bluish, vivid, medium
The trade considers emerald to have the finest _________ among colored stones. -
ANSWER - green
Slight differences in hue, tone, and saturation can make a great difference in
emerald __________ when other factors are equal. - ANSWER - value
emerald's color-causing trace elements are - ANSWER - Chromium, vanadium, and
iron
Poor ____________ can greatly reduce a finished emerald's value. - ANSWER - cutting
premium - ANSWER - The great majority of emeralds contain filled fractures, so
untreated stones command ____________ prices.
a stone is classified a green beryl when.... - ANSWER - its color is too light to be
classified as an emerald
What's the estimated percentage of fashioned emeralds that contain filled
fractures? - ANSWER - 90 or more
Generally, the higher the chromium or vanadium content.... - ANSWER - the more
intense the green color
, Emerald's fractures are often filled with _____ or ________ or a mixture of both. -
ANSWER - oil, resin
Gentle scrubbing with warm, ________ ________ is the safest way to clean emeralds. -
ANSWER - soapy water
The US and Japan account for about _____ percent of emerald purchases worldwide.
- ANSWER – 75
transparent - ANSWER - Inclusions that make an emerald less ___________ also make
it less valuable.
The trade accepts the fact that most emeralds contain eye-visible ____________. -
ANSWER - inclusions
The world's emeralds are judged against _______________ finest. - ANSWER -
Colombia's
Emeralds from ____________ mines generally have fewer fractures than emeralds
from other sources. - ANSWER - African
Many countries supply emeralds to the trade, but few actually ________ them. -
ANSWER - mine
irregular in shape - ANSWER - Zambian emerald crystals are typically...
US and Japan - ANSWER - Which two countries account for about 75% of emerald
purchases worldwide?
GIA's classification system rates the effectiveness of an emerald's treatments from -
ANSWER - "no indications of clarity enhancement" through "clarity enhanced" at a
minor, moderate, or significant. (stated F1, F2, and F3)
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