GIA Colored Stones 3 Exam Questions
and Answers 100% Score Latest
update 2026
To achieve the prized bluish green emerald color, cutters must -
correct answer ✅cut the table perpendicular to the crystal's length
Most mining in Colombia is done -
correct answer ✅along the banks of rivers
The GIA laboratory classifies the levels of emerald enhancement as
-
correct answer ✅minor, moderate, and significant.
The two most common processes used to produce synthetic
emerald are -
correct answer ✅flux and hydrothermal.
What determines the difference between green beryl and emerald?
-
correct answer ✅tone
An advantage of oil fillers is that they -
correct answer ✅can be removed from the stone and replaced.
, GIA Colored Stones 3 Exam Questions
and Answers 100% Score Latest
update 2026
Colombian emeralds are unique because they form -
correct answer ✅in schists
In the early 1900s, mollusk shells were harvested mostly for -
correct answer ✅mother-of-pearl buttons.
Nacre is composed primarily of -
correct answer ✅aragonite and conchiolin.
An assembled cultured blister pearl is called a -
correct answer ✅mabé pearl.
Pearl auctions for loose Tahitian and South Sea cultured pearls
occur -
correct answer ✅in Tahiti, Hong Kong, Japan, and Australia.
The organ that lines the mollusk's shell, encloses its soft body, and
contains the cells that form pearl sacs and secrete nacre is the -
correct answer ✅mantle
and Answers 100% Score Latest
update 2026
To achieve the prized bluish green emerald color, cutters must -
correct answer ✅cut the table perpendicular to the crystal's length
Most mining in Colombia is done -
correct answer ✅along the banks of rivers
The GIA laboratory classifies the levels of emerald enhancement as
-
correct answer ✅minor, moderate, and significant.
The two most common processes used to produce synthetic
emerald are -
correct answer ✅flux and hydrothermal.
What determines the difference between green beryl and emerald?
-
correct answer ✅tone
An advantage of oil fillers is that they -
correct answer ✅can be removed from the stone and replaced.
, GIA Colored Stones 3 Exam Questions
and Answers 100% Score Latest
update 2026
Colombian emeralds are unique because they form -
correct answer ✅in schists
In the early 1900s, mollusk shells were harvested mostly for -
correct answer ✅mother-of-pearl buttons.
Nacre is composed primarily of -
correct answer ✅aragonite and conchiolin.
An assembled cultured blister pearl is called a -
correct answer ✅mabé pearl.
Pearl auctions for loose Tahitian and South Sea cultured pearls
occur -
correct answer ✅in Tahiti, Hong Kong, Japan, and Australia.
The organ that lines the mollusk's shell, encloses its soft body, and
contains the cells that form pearl sacs and secrete nacre is the -
correct answer ✅mantle
