GIA Colored Stones Assignment 15: Emeralds Exam Questions and Answers
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Course
GIA Colored Stones
Institution
GIA Colored Stones
GIA Colored Stones Assignment 15:
Emeralds Exam Questions and Answers
The most desirable emerald colors are _________ green to green, with
strong to _________ saturation and __________ to medium-dark
h, vivid, medium - bluish, vivid, medium
The trade considers emerald to have the finest ______...
The most desirable emerald colors are _________ green to green, with
strong to _________ saturation and __________ to medium-dark
tone.bluish, vivid, medium - ✔✔bluish, vivid, medium
The trade considers emerald to have the finest _________ among colored
stones. - ✔✔green
Slight differences in hue, tone, and saturation can make a great difference
in emerald __________ when other factors are equal. - ✔✔value
emerald's color-causing trace elements are - ✔✔Chromium, vanadium,
and iron
Poor ____________ can greatly reduce a finished emerald's value. -
✔✔cutting
transparent - ✔✔Inclusions that make an emerald less ___________
also make it less valuable.
The trade accepts the fact that most emeralds contain eye-visible
____________. - ✔✔inclusions
, premium - ✔✔The great majority of emeralds contain filled fractures, so
untreated stones command ____________ prices.
Emerald's fractures are often filled with _____ or ________ or a mixture of
both. - ✔✔oil, resin
Gentle scrubbing with warm, ________ ________ is the safest way to
clean emeralds. - ✔✔soapy water
The US and Japan account for about _____ percent of emerald purchases
worldwide. - ✔✔75
The world's emeralds are judged against _______________ finest. -
✔✔Colombia's
Emeralds from ____________ mines generally have fewer fractures than
emeralds from other sources. - ✔✔African
Many countries supply emeralds to the trade, but few actually ________
them. - ✔✔mine
Synthetic spinel triplets are probably the most common emerald
_____________ used in jewelry. - ✔✔imitations
Producers use flux and hydrothermal methods to _______________
emeralds. - ✔✔synthesize
Trapiche emeralds were first discovered in _______. - ✔✔Muzo
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