GIA Diamonds and Diamond Grading Final Questions and Answers
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Course
GIA Diamond
Institution
GIA Diamond
GIA Diamonds and Diamond Grading
FinaL
GIA Diamonds and Diamond Grading
FinaL
GIA Diamonds and Diamond Grading
FinaL
GIA Diamonds and Diamond Grading
FinaL
GIA Diamonds and Diamond Grading
FinaL
GIA Diamonds and Diamond Grading
FinaL
GIA Diamonds and Diamond Grading
FinaL
GIA D...
GIA Diamond and Diamond Grading
Final Questions and Answers
How are gem-quality rough diamonds sorted?
✓ ~~~weight, shape, clarity, and color
What is a downstream segment of the mine to market diamond journey?
✓ ~~~Selling to a customer via diamond jewelry retail
What describes a larger organization buying and joining smaller companies?
✓ ~~~Consolidation
What region was the heart of the diamond rush in South Africa?
✓ ~~~Kimberly
What diamond's discovery led to the modern diamond industry?
✓ ~~~The Dudley- star of South Africa
What is characteristic of minerals?
✓ ~~~Natural inorganic substance with chemical composition and characteristic structure
What layer is molten?
✓ ~~~Outer core
Where are most diamond deposits found?
, ✓ ~~~Cratons
Where do most diamonds form and reside?
✓ ~~~Within the mantel keel under cratons
What is an example of a superdeep diamond?
✓ ~~~Juina
What kind of rock creates a primary diamond deposit?
✓ ~~~Kimberlite
How do geologists locate cratons?
✓ ~~~geological mapping
How does ore removal start in a primary deposit?
✓ ~~~Open-pit mining
What might perovskite in a mineral sample indicate?
✓ ~~~A diamond pipe/source deposit is nearby
What is the rock that covers a pipe?
✓ ~~~overburden - also called yellow ground due to yellow color
Which subatomic particle has no electrical charge?
✓ ~~~Neutron
, What can the diamond type classification system help to identify?
✓ ~~~Lab-grown diamonds
What is another name for the cubic system?
✓ ~~~Isometric
What is the surface in a twinned crystal where the diamond's growth direction
changes?
✓ ~~~Twinning plane
What is a rough diamond's value based on?
✓ ~~~Facet gem potential
What type of radiant energy is found on the electromagnetic spectrum?
✓ ~~~X-ray
What causes steps in a diamond's band gap?
✓ ~~~A constant energy differences. How much energy an electron requires to move across
the gap
What do electrons do when visible light is emitted during luminescence?
✓ ~~~Return to stable state
What subatomic particles interact with light to produce color?
✓ ~~~Electrons
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