Diamonds and Diamond
Grading GIA Units 1-5
Comprehensive Questions
(Frequently Tested) with
Verified Answers Graded A+
What industry commonly works with mounted diamonds? - Answer: Appraisal:
If you work in appraisal—estimating an article's value, usually for insurance purposes—you will
deal more with mounted diamonds. You must make accurate estimations of color, clarity, and
even the stone's weight.
What is traceability in the gem and jewelry industry? - Answer: Confirmation of a gem's history
across the supply chain: Diamond retailers face issues such as branding, new sales channel
development, and traceability: the ability to verify the history of a stone through the supply
chain. Some of these challenges are relatively new to the jewelry industry.
Why is identifying lab-grown diamonds challenging? - Answer: Advancement and refinement of
growth techniques: Accurate diamond identification is challenging, due in part to improvements
in diamond growth technology. Scientists first grew diamonds in the laboratory more than 50
years ago, but refining the technology to create gem-quality diamonds took time. In the last
decade, diamond growth technology has made dramatic progress. Distinguishing lab-grown
diamonds from natural diamonds often requires analysis by a gemological laboratory.
How can diamond science help with sales? - Answer: Convey diamond rarity: Robust diamond
research is essential for addressing some of the most challenging issues in the diamond
industry. Understanding the science helps traders make informed decisions and know when to
consult laboratories and other organizations. The traders can then disclose information to their
clients, who build trust with consumers by providing accurate information.
,What are the Four Cs of the GIA Diamond Grading System? - Answer: Color, cut, clarity, and
carat weight: The grading system developed by GIA is used and accepted around the world. It is
part of the international language of diamond professionals.
What operation is at the start of the diamond value chain? - Answer: Diamond mine: At the
beginning of the diamond value chain are exploration and mining. These ventures are capital-
consuming and risky, so only a limited number of players are involved in this segment.
What is another term for diamond value chain? - Answer: Diamond supply chain: The diamond
industry is complex and dynamic. Understanding the different segments of the diamond value
chain, also known as the diamond supply chain, is important to navigate it successfully.
What are used in the GIA Diamond Grading System? - Answer: Letters and simple expressions:
The solution was to use letters and simple terms to describe a diamond's features and quality.
Standardized diamond grades allow for accurate discussion of specific diamonds without having
the stones in hand.
What research is important to the identification of lab-grown and treated diamonds? - Answer:
Natural diamond studies: Studies of natural diamond formation and the associated features
allow gemologists to differentiate lab-grown or treated stones from their natural counterparts.
Through extensive color cause studies, gemologists can also identify whether the origin of color
is natural.
What is the benefit of a standard diamond grading system? - Answer: Permit comparison of
different diamonds: Standardized diamond grades allow for accurate discussion of specific
diamonds without having the stones in hand. Diamond grades can help you compare one
diamond to another. But a system works only if it's widely understood and accepted.
What is often done when evaluating small, low-quality diamonds? - Answer: Quick inspection
with a loupe: The amount of time spent evaluating a diamond typically depends on its quality
and value. Large, high-quality stones deserve a lot of attention, especially if they're not yet
graded by a lab. It's not worthwhile to spend much time grading small, low-quality stones; a
, quick examination under a loupe is usually all that is required. Small diamonds are often sorted
rather than graded individually.
What industry knowledge helps better satisfy client demand? - Answer: Market awareness:
Market awareness is vital so you can target trends and fulfill the demands of your customers. It
is key to stay up to date about new developments, technology, and socioeconomic events.
What must diamond jewelry retailers carefully consider? - Answer: Multiple consumer
generations: Understanding the buying habits of different consumer groups is critical for today's
diamond retailers.
What is true about diamond formation? - Answer: They form under extreme conditions:
Diamonds form under extreme temperatures and pressures deep within the earth. They were
brought to the surface in explosive volcanic eruptions throughout the earth's long history.
Appraisal - Answer: An estimation of an article's value, usually for insurance purposes.
Tracibility - Answer: The ability to verify the history of a stone through the supply chain.
Diamond Value Chain - Answer: A sequence of sectors and processes involved in the production
and distribution of diamonds. AKA Diamond Supply Chain
What is an upstream segment of the diamond value chain? - Answer: Sorting and distribution:
Based on position in the value chain, rough diamond mining and distribution are considered
upstream and diamond jewelry retail downstream. Everything in between is the midstream.
What caused rough diamond sales to shift from a single-channel to multi-channel market? -
Answer: Sales outside of the CSO: De Beers's CSO was no longer the unified dominant sales
channel for rough diamonds. Some producers and dealers began selling rough through alternate
channels as early as the 1960s and 1970s.
Grading GIA Units 1-5
Comprehensive Questions
(Frequently Tested) with
Verified Answers Graded A+
What industry commonly works with mounted diamonds? - Answer: Appraisal:
If you work in appraisal—estimating an article's value, usually for insurance purposes—you will
deal more with mounted diamonds. You must make accurate estimations of color, clarity, and
even the stone's weight.
What is traceability in the gem and jewelry industry? - Answer: Confirmation of a gem's history
across the supply chain: Diamond retailers face issues such as branding, new sales channel
development, and traceability: the ability to verify the history of a stone through the supply
chain. Some of these challenges are relatively new to the jewelry industry.
Why is identifying lab-grown diamonds challenging? - Answer: Advancement and refinement of
growth techniques: Accurate diamond identification is challenging, due in part to improvements
in diamond growth technology. Scientists first grew diamonds in the laboratory more than 50
years ago, but refining the technology to create gem-quality diamonds took time. In the last
decade, diamond growth technology has made dramatic progress. Distinguishing lab-grown
diamonds from natural diamonds often requires analysis by a gemological laboratory.
How can diamond science help with sales? - Answer: Convey diamond rarity: Robust diamond
research is essential for addressing some of the most challenging issues in the diamond
industry. Understanding the science helps traders make informed decisions and know when to
consult laboratories and other organizations. The traders can then disclose information to their
clients, who build trust with consumers by providing accurate information.
,What are the Four Cs of the GIA Diamond Grading System? - Answer: Color, cut, clarity, and
carat weight: The grading system developed by GIA is used and accepted around the world. It is
part of the international language of diamond professionals.
What operation is at the start of the diamond value chain? - Answer: Diamond mine: At the
beginning of the diamond value chain are exploration and mining. These ventures are capital-
consuming and risky, so only a limited number of players are involved in this segment.
What is another term for diamond value chain? - Answer: Diamond supply chain: The diamond
industry is complex and dynamic. Understanding the different segments of the diamond value
chain, also known as the diamond supply chain, is important to navigate it successfully.
What are used in the GIA Diamond Grading System? - Answer: Letters and simple expressions:
The solution was to use letters and simple terms to describe a diamond's features and quality.
Standardized diamond grades allow for accurate discussion of specific diamonds without having
the stones in hand.
What research is important to the identification of lab-grown and treated diamonds? - Answer:
Natural diamond studies: Studies of natural diamond formation and the associated features
allow gemologists to differentiate lab-grown or treated stones from their natural counterparts.
Through extensive color cause studies, gemologists can also identify whether the origin of color
is natural.
What is the benefit of a standard diamond grading system? - Answer: Permit comparison of
different diamonds: Standardized diamond grades allow for accurate discussion of specific
diamonds without having the stones in hand. Diamond grades can help you compare one
diamond to another. But a system works only if it's widely understood and accepted.
What is often done when evaluating small, low-quality diamonds? - Answer: Quick inspection
with a loupe: The amount of time spent evaluating a diamond typically depends on its quality
and value. Large, high-quality stones deserve a lot of attention, especially if they're not yet
graded by a lab. It's not worthwhile to spend much time grading small, low-quality stones; a
, quick examination under a loupe is usually all that is required. Small diamonds are often sorted
rather than graded individually.
What industry knowledge helps better satisfy client demand? - Answer: Market awareness:
Market awareness is vital so you can target trends and fulfill the demands of your customers. It
is key to stay up to date about new developments, technology, and socioeconomic events.
What must diamond jewelry retailers carefully consider? - Answer: Multiple consumer
generations: Understanding the buying habits of different consumer groups is critical for today's
diamond retailers.
What is true about diamond formation? - Answer: They form under extreme conditions:
Diamonds form under extreme temperatures and pressures deep within the earth. They were
brought to the surface in explosive volcanic eruptions throughout the earth's long history.
Appraisal - Answer: An estimation of an article's value, usually for insurance purposes.
Tracibility - Answer: The ability to verify the history of a stone through the supply chain.
Diamond Value Chain - Answer: A sequence of sectors and processes involved in the production
and distribution of diamonds. AKA Diamond Supply Chain
What is an upstream segment of the diamond value chain? - Answer: Sorting and distribution:
Based on position in the value chain, rough diamond mining and distribution are considered
upstream and diamond jewelry retail downstream. Everything in between is the midstream.
What caused rough diamond sales to shift from a single-channel to multi-channel market? -
Answer: Sales outside of the CSO: De Beers's CSO was no longer the unified dominant sales
channel for rough diamonds. Some producers and dealers began selling rough through alternate
channels as early as the 1960s and 1970s.
