GIA Diamond Essentials Final Exam
1. The combination of the Four C's relates primarily toASW Value
2. The metric carat equalsASW 0.200 gram
3. The small, flat, polished surfaces on a finished diamond are calledASW Facets
4. Most diamonds used in jewelry areASW
5. Diamond is composed primarily ofASW Carbon
6. Gem shapes and cutting styles other than the standard round brilliant are calledASW Fancy cuts
7. Clarity characteristics confined to the surface of a polished diamond are calledASW Blemishes
8. The term "point" in reference to weight is equal toASW
9. A gemstone's resistance to scratching is known as itsASW Hardness
10. On average, mine workers must process more than a ton of rock to recov- erASW A half carat of diamonds
11. The flashes of color you see in a polished diamond are calledASW Fire
12. A standard round brilliant-cut diamond hasASW 57 or 58 facets
13. The term brilliant cut is used for gemstones with facets thatASW Are mostly triangular or kite-shaped
14. Compared to blemishes, inclusions normally haveASW More impact on a dia- mond's value
15. The three major parts of a polished diamond are crown, pavilion, andASW Gir- dle
16. Fracture filling can dramatically affect a diamond'sASW Apparent clarity
17. An included diamond crystal that reaches the surface of a cut diamond is called aASW Knot
18. The most convenient and inexpensive magnifier adequate for diamond grading is theASW Loupe
19. Which of the following is a result of the bruting process?ASW Bearding
20. A diamond with "noticeable inclusions at 10X would receive which of the following clarity grades?ASW SI1 or SI2
21. You should tell your customers that the SI designation meansASW Slightly included
22. A detailed map of a diamond, showing its clarity characteristics, is called aASW Plot
23. A diamond that's graded Flawless might still haveASW Extra facets on the pavilion not visible face up
24. The general term for clarity characteristics within a diamond isASW Inclusions
25. When part of the rough crystal's original surface is left on a fashioned diamond, it's called aASW Natural
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, GIA Diamond Essentials Final Exam
26. One of the five factors that determine the overall effect of inclusions on clarity isASW Nature
27. The standard magnification used for clarity grading isASW 10X
28. In describing inclusions to customers, which of the following terms would probably be best to use?ASW Clarity characteristics
29. The general term for any break in a diamond isASW Feather
30. Clarity characteristics limited to the surface of a diamond are calledASW Blem- ishes
31. To color grade a light yellow or brown diamond, graders compare it to a masterstone forASW Tone & saturation
32. Which of the following GIA color grades indicates the greatest amount of yellow?ASW H
33. The most common color of fluorescence in gem-quality diamond isASW
34. Each letter grade in the GIA Color Scale representsASW A range of color
35. On the GIA color scale, the top grade in the normal color range isASW D
36. The most commonly encountered colors among colored diamonds areASW
37. The normal color range of diamonds isASW Colorless to light yellow, brown, and gray
38. Which of the diamond colors listed here are the most rare?ASW Red & purple
39. Most consumers can easily see color beyondASW M
40. Irradiated diamonds might change color when exposed toASW Heat
41. Which masterstone does the GIA Laboratory use to determine the point where a yellow diamond transitions to the colored
diamond grading scale?ASW Z
42. The combination of tone & saturation that determines how noticeable a color is, is known asASW Depth of color
43. The price differences between colorless diamonds and near-colorless diamonds are due primarily toASW Rarity
44. When mounted, G, H, and I color diamonds can lookASW Colorless face-up
45. The annealing of irradiated diamonds to stabilize their color is done byASW -
Heating
46. An unattractive gray ring under the table may be present in diamonds withASW
47. The balance of a finished gem's cut is known as itsASW Symmetry
48. On fancy shapes such as the oval or pear, variations in the pavilion might causeASW Bow-ties
49. The pavilion angel is the angle formed by the girdle plane and theASW Pavilion main facets
50. Pavilion depth percentage is expressed as a percentage of theASW Average girdle diameter
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1. The combination of the Four C's relates primarily toASW Value
2. The metric carat equalsASW 0.200 gram
3. The small, flat, polished surfaces on a finished diamond are calledASW Facets
4. Most diamonds used in jewelry areASW
5. Diamond is composed primarily ofASW Carbon
6. Gem shapes and cutting styles other than the standard round brilliant are calledASW Fancy cuts
7. Clarity characteristics confined to the surface of a polished diamond are calledASW Blemishes
8. The term "point" in reference to weight is equal toASW
9. A gemstone's resistance to scratching is known as itsASW Hardness
10. On average, mine workers must process more than a ton of rock to recov- erASW A half carat of diamonds
11. The flashes of color you see in a polished diamond are calledASW Fire
12. A standard round brilliant-cut diamond hasASW 57 or 58 facets
13. The term brilliant cut is used for gemstones with facets thatASW Are mostly triangular or kite-shaped
14. Compared to blemishes, inclusions normally haveASW More impact on a dia- mond's value
15. The three major parts of a polished diamond are crown, pavilion, andASW Gir- dle
16. Fracture filling can dramatically affect a diamond'sASW Apparent clarity
17. An included diamond crystal that reaches the surface of a cut diamond is called aASW Knot
18. The most convenient and inexpensive magnifier adequate for diamond grading is theASW Loupe
19. Which of the following is a result of the bruting process?ASW Bearding
20. A diamond with "noticeable inclusions at 10X would receive which of the following clarity grades?ASW SI1 or SI2
21. You should tell your customers that the SI designation meansASW Slightly included
22. A detailed map of a diamond, showing its clarity characteristics, is called aASW Plot
23. A diamond that's graded Flawless might still haveASW Extra facets on the pavilion not visible face up
24. The general term for clarity characteristics within a diamond isASW Inclusions
25. When part of the rough crystal's original surface is left on a fashioned diamond, it's called aASW Natural
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, GIA Diamond Essentials Final Exam
26. One of the five factors that determine the overall effect of inclusions on clarity isASW Nature
27. The standard magnification used for clarity grading isASW 10X
28. In describing inclusions to customers, which of the following terms would probably be best to use?ASW Clarity characteristics
29. The general term for any break in a diamond isASW Feather
30. Clarity characteristics limited to the surface of a diamond are calledASW Blem- ishes
31. To color grade a light yellow or brown diamond, graders compare it to a masterstone forASW Tone & saturation
32. Which of the following GIA color grades indicates the greatest amount of yellow?ASW H
33. The most common color of fluorescence in gem-quality diamond isASW
34. Each letter grade in the GIA Color Scale representsASW A range of color
35. On the GIA color scale, the top grade in the normal color range isASW D
36. The most commonly encountered colors among colored diamonds areASW
37. The normal color range of diamonds isASW Colorless to light yellow, brown, and gray
38. Which of the diamond colors listed here are the most rare?ASW Red & purple
39. Most consumers can easily see color beyondASW M
40. Irradiated diamonds might change color when exposed toASW Heat
41. Which masterstone does the GIA Laboratory use to determine the point where a yellow diamond transitions to the colored
diamond grading scale?ASW Z
42. The combination of tone & saturation that determines how noticeable a color is, is known asASW Depth of color
43. The price differences between colorless diamonds and near-colorless diamonds are due primarily toASW Rarity
44. When mounted, G, H, and I color diamonds can lookASW Colorless face-up
45. The annealing of irradiated diamonds to stabilize their color is done byASW -
Heating
46. An unattractive gray ring under the table may be present in diamonds withASW
47. The balance of a finished gem's cut is known as itsASW Symmetry
48. On fancy shapes such as the oval or pear, variations in the pavilion might causeASW Bow-ties
49. The pavilion angel is the angle formed by the girdle plane and theASW Pavilion main facets
50. Pavilion depth percentage is expressed as a percentage of theASW Average girdle diameter
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