GIA Diamond Essentials Final Exam
300+Actual Exam Questions With Reviewed
100% Correct Detailed Answers
Guaranteed Pass!!
1. Each letter grade in the GIA Color Scale represents - ANSWER A range of
color
2. On the GIA color scale, the top grade in the normal color range is - ANSWER
D
3. The most commonly encountered colors among colored diamonds are -
ANSWER
4. The normal color range of diamonds is - ANSWER Colorless to light
yellow, brown, and gray
5. Which of the diamond colors listed here are the most rare? - ANSWER
Red & purple
6. Most consumers can easily see color beyond - ANSWER M
7. Irradiated diamonds might change color when exposed to - ANSWER
Heat
,8. Which masterstone does the GIA Laboratory use to determine the point
where a yellow diamond transitions to the colored diamond grading scale? -
ANSWER Z
9. The combination of tone & saturation that determines how noticeable a
color is, is known as - ANSWER Depth of color
10.The price differences between colorless diamonds and near-colorless
diamonds are due primarily to - ANSWER Rarity
11.When mounted, G, H, and I color diamonds can look - ANSWER
Colorless face-up
12.The annealing of irradiated diamonds to stabilize their color is done by -
ANSWER Heating
13.An unattractive gray ring under the table may be present in diamonds with -
ANSWER
14.The balance of a finished gem's cut is known as its - ANSWER Symmetry
15.On fancy shapes such as the oval or pear, variations in the pavilion might
cause - ANSWER Bow-ties
,16.The pavilion angel is the angle formed by the girdle plane and the -
ANSWER Pavilion main facets
17.Pavilion depth percentage is expressed as a percentage of the - ANSWER
Average girdle diameter
18.The quality of the polish and precision of the cut of a fashioned gemstone is
its - ANSWER Finish
19.If a marquise cut measures 9mm X 3mm, its length-to-width ration is -
ANSWER 3:1
20.The sparkle that occurs in a diamond when the gem, its light source, or its
observer move is known as - ANSWER Scintillation
21.The primary purpose of the culet is to - ANSWER Prevent chipping
22.The separation of white light into its spectral colors is - ANSWER
Dispersion
23.A diamond's finish consists of symmetry and - ANSWER Polish
24.The crown angle is formed by the girdle plane and the - ANSWER Bezel
facets
, 25.Symmetry variations include - ANSWER Off-center tables and misshapen
facets
26.On marquises, pears, and hearts, the sides near the points are called -
ANSWER Wings
27.The angles and relative measurements of a polished gem and the
relationships between them describe its - ANSWER Proportions
28.An incorrect way to describe a 0.47 carat diamond to a customer would be -
ANSWER This is a half-carat diamond
29.If a ring is set with a 0.83 carat, center stone, two baguettes that weigh 0.10
carat each, and six round brilliants that weigh 0.02 carats each, the total
weight is - ANSWER 1.15 carats
30.A full-cut round brilliant diamond with a 6.50mm girdle diameter weighs
about - ANSWER 1.00 carat
31."Magic sizes" are - ANSWER Weights at which prices increase
dramatically
32.A diamond's depth is always the distance from the table to the - ANSWER
Culet
300+Actual Exam Questions With Reviewed
100% Correct Detailed Answers
Guaranteed Pass!!
1. Each letter grade in the GIA Color Scale represents - ANSWER A range of
color
2. On the GIA color scale, the top grade in the normal color range is - ANSWER
D
3. The most commonly encountered colors among colored diamonds are -
ANSWER
4. The normal color range of diamonds is - ANSWER Colorless to light
yellow, brown, and gray
5. Which of the diamond colors listed here are the most rare? - ANSWER
Red & purple
6. Most consumers can easily see color beyond - ANSWER M
7. Irradiated diamonds might change color when exposed to - ANSWER
Heat
,8. Which masterstone does the GIA Laboratory use to determine the point
where a yellow diamond transitions to the colored diamond grading scale? -
ANSWER Z
9. The combination of tone & saturation that determines how noticeable a
color is, is known as - ANSWER Depth of color
10.The price differences between colorless diamonds and near-colorless
diamonds are due primarily to - ANSWER Rarity
11.When mounted, G, H, and I color diamonds can look - ANSWER
Colorless face-up
12.The annealing of irradiated diamonds to stabilize their color is done by -
ANSWER Heating
13.An unattractive gray ring under the table may be present in diamonds with -
ANSWER
14.The balance of a finished gem's cut is known as its - ANSWER Symmetry
15.On fancy shapes such as the oval or pear, variations in the pavilion might
cause - ANSWER Bow-ties
,16.The pavilion angel is the angle formed by the girdle plane and the -
ANSWER Pavilion main facets
17.Pavilion depth percentage is expressed as a percentage of the - ANSWER
Average girdle diameter
18.The quality of the polish and precision of the cut of a fashioned gemstone is
its - ANSWER Finish
19.If a marquise cut measures 9mm X 3mm, its length-to-width ration is -
ANSWER 3:1
20.The sparkle that occurs in a diamond when the gem, its light source, or its
observer move is known as - ANSWER Scintillation
21.The primary purpose of the culet is to - ANSWER Prevent chipping
22.The separation of white light into its spectral colors is - ANSWER
Dispersion
23.A diamond's finish consists of symmetry and - ANSWER Polish
24.The crown angle is formed by the girdle plane and the - ANSWER Bezel
facets
, 25.Symmetry variations include - ANSWER Off-center tables and misshapen
facets
26.On marquises, pears, and hearts, the sides near the points are called -
ANSWER Wings
27.The angles and relative measurements of a polished gem and the
relationships between them describe its - ANSWER Proportions
28.An incorrect way to describe a 0.47 carat diamond to a customer would be -
ANSWER This is a half-carat diamond
29.If a ring is set with a 0.83 carat, center stone, two baguettes that weigh 0.10
carat each, and six round brilliants that weigh 0.02 carats each, the total
weight is - ANSWER 1.15 carats
30.A full-cut round brilliant diamond with a 6.50mm girdle diameter weighs
about - ANSWER 1.00 carat
31."Magic sizes" are - ANSWER Weights at which prices increase
dramatically
32.A diamond's depth is always the distance from the table to the - ANSWER
Culet
