GIA DIAMONDS AND DIAMOND GRADING FINAL
EXAM 2025 WITH ACTUAL CORRECT QUESTIONS
AND VERIFIED DETAILED ANSWERS
|FREQUENTLY TESTED QUESTIONS AND
SOLUTIONS |ALREADY GRADED A+|BRAND
NEW!!|LATEST UPDATE |GUARANTEED PASS
Which of the following pavilion depth percentages would most likely cause the girdle reflection to be
visible face-up through the table?
37.0 percent
A diamond's physical shape, including its proportions and durability, determined by decisions made
during the fashioning process, is its
design
As a diamond's pavilion gets deeper, its table reflection becomes
larger
Calculate an estimated girdle thickness percentage for the following stone:
Total depth percentage: 62.8 percent
Crown height percentage: 15.5 percent
Pavilion depth percentage: 45.5 percent
2%
The proportions that play the biggest role in determining a round brilliant diamond's brightness are
table percentage, crown angle, and
pavilion angle.
The care that goes into the fashioning of a polished diamond, as confirmed by its finish, is its
craftsminship
Lower half facet length is expressed as a percentage of the
girdle-to-culet distance.
The purpose of the culet facet is to
1|Page
,Prevent chipping
Culet size should be considered when determining
pavilion depth percentage
Compared to round brilliants, one difference in the color-grading process for fancy-cut diamonds is the
viewing direction.
To calculate the table percentage of a fancy cut, divide the the table size by the stone's
Width
The rounded end of a pear-shaped stone is called the
head
On a marquise-shaped, brilliant-cut diamond, pavilion-angle variations can result in
bow-tie
A faceting style that replaces the large bezel facets at the points of some diamonds with star and upper
half facets is called a
french tip
On emerald cuts, differences in the angles of the rows of pavilion facets cause
pavilion bulge
When you judge a diamond's shape appeal, you consider
whether or not its shape is graceful and pleasing.
Calculate the length-to-width ratio of the following pear shape:
Length 7.51 mm
Width 5.19 mm
1.45:1
Where on a fancy-cut diamond might multiple facet reflections make it most difficult to detect clarity
characteristics?
point
The slightly curved, central areas on the sides of some brilliant fancy cuts are called
bellies
Princess cuts are popular in jewelry designs that call for
channel settings
Excessive pavilion bulge on emerald cuts results in
2|Page
, excess weight
On an emerald-cut diamond, very narrow corners should be noted under
proportions, as a shape-appeal factor.
A gem that features triangular and kite-shaped facets that radiate from its center toward its girdle is
called a
brilliant cut
Which of the following appears only on fancy cuts?
Upper girdle facets
Calculate the estimated weight of a heart-shaped brilliant with the following dimensions:
Length: 5.58 mm
Width: 5.51 mm
Depth: 3.21 mm
Girdle thickness: Medium
0.58ct
When estimating the weight of very small diamonds, graders
often use templates.
The ultimate recutting consideration is
the potential value of the finished diamond.
The setting that makes it most difficult to estimate a stone's weight is a
bezel setting with a closed back.
Calculate the estimated weight of a round brilliant with the following dimensions:
Average diameter: 7.25 mm
Depth: 5.45 mm
Girdle thickness: Very thick
1.83ct
An improvable is a diamond that can be repolished to improve its clarity
to VVS1 or VVS2.
A mounting makes it impossible to
accurately weigh a diamond.
Which of the following requires the greatest adjustment to estimated weight?
Thick girdle
A diamond's recut style is largely determined by
3|Page
EXAM 2025 WITH ACTUAL CORRECT QUESTIONS
AND VERIFIED DETAILED ANSWERS
|FREQUENTLY TESTED QUESTIONS AND
SOLUTIONS |ALREADY GRADED A+|BRAND
NEW!!|LATEST UPDATE |GUARANTEED PASS
Which of the following pavilion depth percentages would most likely cause the girdle reflection to be
visible face-up through the table?
37.0 percent
A diamond's physical shape, including its proportions and durability, determined by decisions made
during the fashioning process, is its
design
As a diamond's pavilion gets deeper, its table reflection becomes
larger
Calculate an estimated girdle thickness percentage for the following stone:
Total depth percentage: 62.8 percent
Crown height percentage: 15.5 percent
Pavilion depth percentage: 45.5 percent
2%
The proportions that play the biggest role in determining a round brilliant diamond's brightness are
table percentage, crown angle, and
pavilion angle.
The care that goes into the fashioning of a polished diamond, as confirmed by its finish, is its
craftsminship
Lower half facet length is expressed as a percentage of the
girdle-to-culet distance.
The purpose of the culet facet is to
1|Page
,Prevent chipping
Culet size should be considered when determining
pavilion depth percentage
Compared to round brilliants, one difference in the color-grading process for fancy-cut diamonds is the
viewing direction.
To calculate the table percentage of a fancy cut, divide the the table size by the stone's
Width
The rounded end of a pear-shaped stone is called the
head
On a marquise-shaped, brilliant-cut diamond, pavilion-angle variations can result in
bow-tie
A faceting style that replaces the large bezel facets at the points of some diamonds with star and upper
half facets is called a
french tip
On emerald cuts, differences in the angles of the rows of pavilion facets cause
pavilion bulge
When you judge a diamond's shape appeal, you consider
whether or not its shape is graceful and pleasing.
Calculate the length-to-width ratio of the following pear shape:
Length 7.51 mm
Width 5.19 mm
1.45:1
Where on a fancy-cut diamond might multiple facet reflections make it most difficult to detect clarity
characteristics?
point
The slightly curved, central areas on the sides of some brilliant fancy cuts are called
bellies
Princess cuts are popular in jewelry designs that call for
channel settings
Excessive pavilion bulge on emerald cuts results in
2|Page
, excess weight
On an emerald-cut diamond, very narrow corners should be noted under
proportions, as a shape-appeal factor.
A gem that features triangular and kite-shaped facets that radiate from its center toward its girdle is
called a
brilliant cut
Which of the following appears only on fancy cuts?
Upper girdle facets
Calculate the estimated weight of a heart-shaped brilliant with the following dimensions:
Length: 5.58 mm
Width: 5.51 mm
Depth: 3.21 mm
Girdle thickness: Medium
0.58ct
When estimating the weight of very small diamonds, graders
often use templates.
The ultimate recutting consideration is
the potential value of the finished diamond.
The setting that makes it most difficult to estimate a stone's weight is a
bezel setting with a closed back.
Calculate the estimated weight of a round brilliant with the following dimensions:
Average diameter: 7.25 mm
Depth: 5.45 mm
Girdle thickness: Very thick
1.83ct
An improvable is a diamond that can be repolished to improve its clarity
to VVS1 or VVS2.
A mounting makes it impossible to
accurately weigh a diamond.
Which of the following requires the greatest adjustment to estimated weight?
Thick girdle
A diamond's recut style is largely determined by
3|Page
