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GIA Diamonds and Diamond Grading (2024/2025) FINAL EXAM QUESTIONS WITH VERIFIED CORRECT ANSWERS || 100% GUARANTEED PASS!!! <BRAND NEW VERSION>$12.49
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GIA Diamonds and Diamond Grading (2024/2025) FINAL EXAM QUESTIONS WITH VERIFIED CORRECT ANSWERS || 100% GUARANTEED PASS!!! <BRAND NEW VERSION>
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GIA Diamonds and Diamond Grading
Institution
GIA Diamonds And Diamond Grading
GIA Diamonds and Diamond
Grading (2024/2025) FINAL EXAM
QUESTIONS WITH VERIFIED CORRECT
ANSWERS || 100% GUARANTEED PASS!!!
<BRAND NEW VERSION>
Why are multistep treatments used for diamond color? - ANSWER Rarity of
starting material
Where in the supply chain do diamond professiona...
GIA Diamonds and Diamond
Grading (2024/2025) FINAL EXAM
QUESTIONS WITH VERIFIED CORRECT
ANSWERS || 100% GUARANTEED PASS!!!
<BRAND NEW VERSION>
Why are multistep treatments used for diamond color? - ANSWER ✔ Rarity of
starting material
Where in the supply chain do diamond professionals and regulatory agencies
require disclosure of diamond treatments? - ANSWER ✔ Every time ownership
changes
What diamond clarity treatment relies on similar refractive index (RI) values? -
ANSWER ✔ Fracture filling
What are the spaces where displaced carbon atoms move to when irradiated? -
ANSWER ✔ Interstitial positions
What was the earliest method of diamond color treatment? - ANSWER ✔ Coating
What color treatment can be reversed to restore the diamond's original bodycolor?
- ANSWER ✔ Coating
How does LPHT treatment create color? - ANSWER ✔ Induces graphitization
Where are the openings of laser drill-holes typically found? - ANSWER ✔ Crown
What diamonds on the D-to-Z color scale are typically selected for color
treatment? - ANSWER ✔ Light yellow range
,What bodycolor results from HPHT treatment of a Type 1 diamond? - ANSWER
✔ Yellow
Where does acid enter an internally laser-drilled diamond? - ANSWER ✔
Cleavage
What lighting is best to use when looking for evidence of irradiation? - ANSWER
✔ Diffused
What diamond color treatment reorganizes color centers in the diamond crystal
lattice? - ANSWER ✔ Annealingg
What diamond clarity treatment disguises dark crystal inclusions? - ANSWER ✔
Laser drilling
Why can diamond color differ as a result of irradiation? - ANSWER ✔ Defects
present
What type of clarity characteristics determine the clarity grade of a dimaond? -
ANSWER ✔ Grade-setting
What characteristics are drawn only in green on a plot? - ANSWER ✔ Blemishes
What is a term that describes tone? - ANSWER ✔ Degree of darkness; lightness
of a color
What color becomes more prominent as warm hues become less saturated? -
ANSWER ✔ Brown
What term falls on the GIA D-Z color scale? - ANSWER ✔ Colorless, near-
colorless, faint, very light, light
What is the correlation between a mastertone and the grade it represents? -
ANSWER ✔ Universal standard, maintains consistency
,Why must a diamond be re-examined under magnification after color grading? -
ANSWER ✔ Confirm identity
What diamond size makes it easiest to see subtle color? - ANSWER ✔ The larger
the diamond, the easiest it is to see color
What results from averaging the sum of the smallest and largest diameters of a
round brilliant - ANSWER ✔ Average girdle diameter
How many crown angles on a round brilliant diamond should be estimated before
averaging? - ANSWER ✔ 8
What may result from a thick, unpolished girdle? - ANSWER ✔ Grey, reflection
on the stone
How is a diamond positioned to estimate the lower half facet length percentage? -
ANSWER ✔ Face up position
Why do diamonds with steep crowns offer less vaule? - ANSWER ✔ Look
smaller face-up than weight suggest
What describes the polish quality and cut precision of a diamond? - ANSWER ✔
Craftmanship
What proportion greatly influences brightness in a round brilliant diamonds? -
ANSWER ✔ Table percentage
How do steep pavilion angles affect appearance? - ANSWER ✔ Produce dark
areas under the table
What parameters is measured at the belly of an oval? - ANSWER ✔ Width
What are the clarity fractors used for grading fancy cuts? - ANSWER ✔ Size,
number, location, relief, nature
, How does graders view the bow-tie effect in a stone? - ANSWER ✔ Face-up
What is a fancy shape diamond compared to when judging appeal? - ANSWER ✔
Should be graceful and pleasing
Should be the standard for their particular shape and style
What is a square or rectangular modified brilliant cut? - ANSWER ✔ Radiant
Why is the face down diagonal direction used for color grading fancy-cut
diamonds? - ANSWER ✔ Shows average amount of color
What helps reveal inclusions hidden by a moutning? - ANSWER ✔ Reflections
What clarity grade can a potential become? - ANSWER ✔ They can be repolished
to improve clarity up to an internally flawless grade
What is a consideration for diamond recutting? - ANSWER ✔ Cost to recut
What do appraisers assign to small mounted diamonds when clarity grading? -
ANSWER ✔ Range of grades
What value adding process does a diamond mining company perform? -
ANSWER ✔ Categorize and sorting the diamonds
What trade organization formed in 2015 to expand demand for the diamond
industry? - ANSWER ✔ Diamond producers association (DPA)
What advertising method is key to the current diamond market? - ANSWER ✔
Internet
What industrial-grade diamond typically form as single very included crystals? -
ANSWER ✔ Bort
What made it difficult for independent claim holders to survive during the
diamond rush in South Africa? - ANSWER ✔ Expenses
What metal dominated melts related to CLIPPIR diamond formation? - ANSWER
✔ Iron
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