GIA Diamonds and Diamond Grading Final Exam
| Newest Questions and Answers | Updated 2026
| Complete Review
• design . CORRECT ANSWER: A diamond's physical shape, including its
proportions and durability, determined by decisions made during the fashioning
process.
• table reflection . CORRECT ANSWER: As a diamond's pavilion gets deeper, its
table reflection becomes larger.
• girdle thickness percentage . CORRECT ANSWER: Calculated from the total
depth percentage, crown height percentage, and pavilion depth percentage.
• craftsmanship . CORRECT ANSWER: The care that goes into the fashioning of a
polished diamond, as confirmed by its finish.
• lower half facet length . CORRECT ANSWER: Expressed as a percentage of the
girdle-to-culet distance.
• culet facet . CORRECT ANSWER: The purpose of the culet facet is to prevent
chipping.
• culet size . CORRECT ANSWER: Should be considered when determining pavilion
depth percentage.
• color-grading process . CORRECT ANSWER: One difference for fancy-cut
diamonds compared to round brilliants is the viewing direction.
,• table percentage . CORRECT ANSWER: To calculate the table percentage of a
fancy cut, divide the table size by the stone's width.
• head . CORRECT ANSWER: The rounded end of a pear-shaped stone.
• bow-tie . CORRECT ANSWER: Pavilion-angle variations on a marquise-shaped,
brilliant-cut diamond can result in a bow-tie.
• french tip . CORRECT ANSWER: A faceting style that replaces the large bezel
facets at the points of some diamonds with star and upper half facets.
• pavilion bulge . CORRECT ANSWER: Differences in the angles of the rows of
pavilion facets on emerald cuts cause pavilion bulge.
• shape appeal . CORRECT ANSWER: When judging a diamond's shape appeal,
you consider whether or not its shape is graceful and pleasing.
• length-to-width ratio . CORRECT ANSWER: Calculated as 1.45:1 for a pear shape
with length 7.51 mm and width 5.19 mm.
• clarity characteristics . CORRECT ANSWER: Multiple facet reflections on a fancy-
cut diamond make it most difficult to detect clarity characteristics at the point.
• bellies . CORRECT ANSWER: The slightly curved, central areas on the sides of
some brilliant fancy cuts.
, • channel settings . CORRECT ANSWER: Princess cuts are popular in jewelry
designs that call for channel settings.
• excessive pavilion bulge . CORRECT ANSWER: Results in excess weight on
emerald cuts.
• proportions . CORRECT ANSWER: On an emerald-cut diamond, very narrow
corners should be noted under proportions, as a shape-appeal factor.
• brilliant cut . CORRECT ANSWER: A gem that features triangular and kite-
shaped facets that radiate from its center toward its girdle.
• upper girdle facets . CORRECT ANSWER: Appears only on fancy cuts.
• estimated weight . CORRECT ANSWER: Calculated as 0.58ct for a heart-shaped
brilliant with dimensions: Length 5.58 mm, Width 5.51 mm, Depth 3.21 mm,
Girdle thickness: Medium.
• templates . CORRECT ANSWER: Graders often use templates when estimating
the weight of very small diamonds.
• recutting consideration . CORRECT ANSWER: The ultimate recutting
consideration is the potential value of the finished diamond.
• Bezel setting with a closed back . CORRECT ANSWER: The setting that makes it
most difficult to estimate a stone's weight.
| Newest Questions and Answers | Updated 2026
| Complete Review
• design . CORRECT ANSWER: A diamond's physical shape, including its
proportions and durability, determined by decisions made during the fashioning
process.
• table reflection . CORRECT ANSWER: As a diamond's pavilion gets deeper, its
table reflection becomes larger.
• girdle thickness percentage . CORRECT ANSWER: Calculated from the total
depth percentage, crown height percentage, and pavilion depth percentage.
• craftsmanship . CORRECT ANSWER: The care that goes into the fashioning of a
polished diamond, as confirmed by its finish.
• lower half facet length . CORRECT ANSWER: Expressed as a percentage of the
girdle-to-culet distance.
• culet facet . CORRECT ANSWER: The purpose of the culet facet is to prevent
chipping.
• culet size . CORRECT ANSWER: Should be considered when determining pavilion
depth percentage.
• color-grading process . CORRECT ANSWER: One difference for fancy-cut
diamonds compared to round brilliants is the viewing direction.
,• table percentage . CORRECT ANSWER: To calculate the table percentage of a
fancy cut, divide the table size by the stone's width.
• head . CORRECT ANSWER: The rounded end of a pear-shaped stone.
• bow-tie . CORRECT ANSWER: Pavilion-angle variations on a marquise-shaped,
brilliant-cut diamond can result in a bow-tie.
• french tip . CORRECT ANSWER: A faceting style that replaces the large bezel
facets at the points of some diamonds with star and upper half facets.
• pavilion bulge . CORRECT ANSWER: Differences in the angles of the rows of
pavilion facets on emerald cuts cause pavilion bulge.
• shape appeal . CORRECT ANSWER: When judging a diamond's shape appeal,
you consider whether or not its shape is graceful and pleasing.
• length-to-width ratio . CORRECT ANSWER: Calculated as 1.45:1 for a pear shape
with length 7.51 mm and width 5.19 mm.
• clarity characteristics . CORRECT ANSWER: Multiple facet reflections on a fancy-
cut diamond make it most difficult to detect clarity characteristics at the point.
• bellies . CORRECT ANSWER: The slightly curved, central areas on the sides of
some brilliant fancy cuts.
, • channel settings . CORRECT ANSWER: Princess cuts are popular in jewelry
designs that call for channel settings.
• excessive pavilion bulge . CORRECT ANSWER: Results in excess weight on
emerald cuts.
• proportions . CORRECT ANSWER: On an emerald-cut diamond, very narrow
corners should be noted under proportions, as a shape-appeal factor.
• brilliant cut . CORRECT ANSWER: A gem that features triangular and kite-
shaped facets that radiate from its center toward its girdle.
• upper girdle facets . CORRECT ANSWER: Appears only on fancy cuts.
• estimated weight . CORRECT ANSWER: Calculated as 0.58ct for a heart-shaped
brilliant with dimensions: Length 5.58 mm, Width 5.51 mm, Depth 3.21 mm,
Girdle thickness: Medium.
• templates . CORRECT ANSWER: Graders often use templates when estimating
the weight of very small diamonds.
• recutting consideration . CORRECT ANSWER: The ultimate recutting
consideration is the potential value of the finished diamond.
• Bezel setting with a closed back . CORRECT ANSWER: The setting that makes it
most difficult to estimate a stone's weight.
