GIA Diamonds and Diamond Grading LATEST VERSION
QUESTIONS AND ANSWERS WITH STUDY GUIDE DETAILED AND
VERIFIED FOR GUARANTEED PASS, LATEST UPDATE 2025,2026
GRADED A
The most consistent and dependable sources of diamond grades are:
- CORRECT ANSWER Reputable, gemological, laboratories
Dealers often sort melee by size using: - CORRECT ANSWER
sieves
It is not practical to grade and expensive stones. Small diamonds are
often sorted by size, putting them through a series of sieves and then
by color.
A diamond grading system provides: - CORRECT ANSWER A
consistent way to communicate Diamond quality.
A widely recognized diamond grading system enables people to
compare one diamond to another, and communicate out about
diamonds in a standardized, consistent way.
An estimation of value of an article is a: - CORRECT ANSWER
Appraisal
An appraisal is an estimation of value of an article. And jewelry
appraisals are commonly used to identify jewelry items, and establish
values for insurance replacement.
The Argyle Mine in Australia, contributed to: - CORRECT ANSWER
The rise of cutting industry in India
The dramatic growth of India's dive, and cutting industry, was a direct
result of the high-level of production from the Argyle mine in Australia
,Wholesale price lists are usually organized according to: - CORRECT
ANSWER Specific combinations of the four Cs
The wholesale prices on publish price list are usually based on
specific combination of the four Cs
The Diamond industry has has changed, dramatically and recent
years because: - CORRECT ANSWER The world supply of
diamond rough has increased, making diamonds available to a wider
consumer base
Diamond supreme, hardness, and durability are: - CORRECT
ANSWER A result of the conditions on which it formed
Formation under specific temperature, temperature and pressure
conditions result in diamonds, supreme, harness, durability, and
desirable optical properties.
Diamond prices on wholesale price lists: - CORRECT ANSWER
Depends on the market conditions that exist when the list are
published.
Published wholesale price list are based on specific combination of
the four Cs and depend on the market conditions that exist when they
are published
Substantial price discounts are available to retailers and Jewelry
manufactures who: - CORRECT ANSWER Can buy in large
quantities.
Wholesalers usually sell goods in large quantities and their
customers who buy large quantities often get substantial discounts
Once Diamond deposits are located, mining companies: - CORRECT
ANSWER Must spend additional time and money to evaluate and
develop them.
,Once a diamond deposit is located, it takes an enormous amount of
time and money to analyze and develop it.
A diamond clarity and color grades indicate its: - CORRECT
ANSWER Quality
A diamond grade indicates its quality, while a diamonds value is
largely determined by market factors.
Reputable Gem laboratories, don't grade mounted diamonds because:
- CORRECT ANSWER Mounting high details of clarity and cut.
Mountainside, clarity and cut details and mask color, which is why
reputable gem labs don't grade mounted diamonds.
A wholesaler is someone who: - CORRECT ANSWER Sells to
retailers
Wholesalers don't sell directly to consumers they sell to retailers
Before the discovery of South Africa is diamond deposit, the worlds
two major producers were India, and: - CORRECT ANSWER
Brazil
India was the world's major source of diamonds until Brazil became
an important source in the 1700s .
Who established de beers consolidated mines limited in 1888? -
CORRECT ANSWER Cecil Rhodes
A soft diamond berry material near the surface of a diamond field was
named: - CORRECT ANSWER Yellow ground
The soft, workable diamond, bearing material near the service of a
mining claim, was called yellow ground. The harder material beneath
the surface was called blue ground.
, The south African diamond rush was sparked: - CORRECT
ANSWER The discovery of the star of South Africa.
The discovery of the star of South Africa, 1869, and the publicity that
surrounded it, initiated the diamond Russian in South Africa.
Cecil Rhodes main competitor in his early attempts to control
Diamond production was: - CORRECT ANSWER Barney
Barnato
Barney Barnato was an entrepreneur who completed with Cecil
Rhodes for ownership of shares of the Kimberley mine
Oppenheimer's answered to low diamond demand in the 1930s was
to: - CORRECT ANSWER Shut down operations of the deBeers
Mines
Ernest Oppenheimer shut down the operation of the deBeers mines in
1932, because of low demand for diamonds during the great
depression
The path diamonds followed from Mine to consumer, was called the: -
CORRECT ANSWER Diamond pipeline
Most of the worlds, rough diamonds flow from mine to consumer via a
preset path, called the Diamond pipeline
Diamond sources started appearing in South Africa during the: -
CORRECT ANSWER 1860s
The Eureka and the start of South Africa were found in the 1860s in
South Africa
DeBeers requires its site holders to have an excellent reputation in
the industry and: - CORRECT ANSWER The financial strength
to make a large purchase commitments
QUESTIONS AND ANSWERS WITH STUDY GUIDE DETAILED AND
VERIFIED FOR GUARANTEED PASS, LATEST UPDATE 2025,2026
GRADED A
The most consistent and dependable sources of diamond grades are:
- CORRECT ANSWER Reputable, gemological, laboratories
Dealers often sort melee by size using: - CORRECT ANSWER
sieves
It is not practical to grade and expensive stones. Small diamonds are
often sorted by size, putting them through a series of sieves and then
by color.
A diamond grading system provides: - CORRECT ANSWER A
consistent way to communicate Diamond quality.
A widely recognized diamond grading system enables people to
compare one diamond to another, and communicate out about
diamonds in a standardized, consistent way.
An estimation of value of an article is a: - CORRECT ANSWER
Appraisal
An appraisal is an estimation of value of an article. And jewelry
appraisals are commonly used to identify jewelry items, and establish
values for insurance replacement.
The Argyle Mine in Australia, contributed to: - CORRECT ANSWER
The rise of cutting industry in India
The dramatic growth of India's dive, and cutting industry, was a direct
result of the high-level of production from the Argyle mine in Australia
,Wholesale price lists are usually organized according to: - CORRECT
ANSWER Specific combinations of the four Cs
The wholesale prices on publish price list are usually based on
specific combination of the four Cs
The Diamond industry has has changed, dramatically and recent
years because: - CORRECT ANSWER The world supply of
diamond rough has increased, making diamonds available to a wider
consumer base
Diamond supreme, hardness, and durability are: - CORRECT
ANSWER A result of the conditions on which it formed
Formation under specific temperature, temperature and pressure
conditions result in diamonds, supreme, harness, durability, and
desirable optical properties.
Diamond prices on wholesale price lists: - CORRECT ANSWER
Depends on the market conditions that exist when the list are
published.
Published wholesale price list are based on specific combination of
the four Cs and depend on the market conditions that exist when they
are published
Substantial price discounts are available to retailers and Jewelry
manufactures who: - CORRECT ANSWER Can buy in large
quantities.
Wholesalers usually sell goods in large quantities and their
customers who buy large quantities often get substantial discounts
Once Diamond deposits are located, mining companies: - CORRECT
ANSWER Must spend additional time and money to evaluate and
develop them.
,Once a diamond deposit is located, it takes an enormous amount of
time and money to analyze and develop it.
A diamond clarity and color grades indicate its: - CORRECT
ANSWER Quality
A diamond grade indicates its quality, while a diamonds value is
largely determined by market factors.
Reputable Gem laboratories, don't grade mounted diamonds because:
- CORRECT ANSWER Mounting high details of clarity and cut.
Mountainside, clarity and cut details and mask color, which is why
reputable gem labs don't grade mounted diamonds.
A wholesaler is someone who: - CORRECT ANSWER Sells to
retailers
Wholesalers don't sell directly to consumers they sell to retailers
Before the discovery of South Africa is diamond deposit, the worlds
two major producers were India, and: - CORRECT ANSWER
Brazil
India was the world's major source of diamonds until Brazil became
an important source in the 1700s .
Who established de beers consolidated mines limited in 1888? -
CORRECT ANSWER Cecil Rhodes
A soft diamond berry material near the surface of a diamond field was
named: - CORRECT ANSWER Yellow ground
The soft, workable diamond, bearing material near the service of a
mining claim, was called yellow ground. The harder material beneath
the surface was called blue ground.
, The south African diamond rush was sparked: - CORRECT
ANSWER The discovery of the star of South Africa.
The discovery of the star of South Africa, 1869, and the publicity that
surrounded it, initiated the diamond Russian in South Africa.
Cecil Rhodes main competitor in his early attempts to control
Diamond production was: - CORRECT ANSWER Barney
Barnato
Barney Barnato was an entrepreneur who completed with Cecil
Rhodes for ownership of shares of the Kimberley mine
Oppenheimer's answered to low diamond demand in the 1930s was
to: - CORRECT ANSWER Shut down operations of the deBeers
Mines
Ernest Oppenheimer shut down the operation of the deBeers mines in
1932, because of low demand for diamonds during the great
depression
The path diamonds followed from Mine to consumer, was called the: -
CORRECT ANSWER Diamond pipeline
Most of the worlds, rough diamonds flow from mine to consumer via a
preset path, called the Diamond pipeline
Diamond sources started appearing in South Africa during the: -
CORRECT ANSWER 1860s
The Eureka and the start of South Africa were found in the 1860s in
South Africa
DeBeers requires its site holders to have an excellent reputation in
the industry and: - CORRECT ANSWER The financial strength
to make a large purchase commitments
