GIA DIAMOND ESSENTIALS FINAL EXAM 2026
COMPREHENSIVE STUDY GUIDE COMPLETE
SOLUTIONS VERIFIED
◉ Colorless to light yellow, brown, and gray. Answer: The normal
color range of diamonds is
◉ Red & purple. Answer: Which of the diamond colors listed here
are the most rare?
◉ M. Answer: Most consumers can easily see color beyond
◉ Heat. Answer: Irradiated diamonds might change color when
exposed to
◉ Z. Answer: Which masterstone does the GIA Laboratory use to
determine the point where a yellow diamond transitions to the
colored diamond grading scale?
◉ Depth of color. Answer: The combination of tone & saturation that
determines how noticeable a color is, is known as
, ◉ Rarity. Answer: The price differences between colorless diamonds
and near-colorless diamonds are due primarily to
◉ Colorless face-up. Answer: When mounted, G, H, and I color
diamonds can look
◉ Heating. Answer: The annealing of irradiated diamonds to
stabilize their color is done by
◉ . Answer: An unattractive gray ring under the table may be
present in diamonds with
◉ Symmetry. Answer: The balance of a finished gem's cut is known
as its
◉ Bow-ties. Answer: On fancy shapes such as the oval or pear,
variations in the pavilion might cause
◉ Pavilion main facets. Answer: The pavilion angel is the angle
formed by the girdle plane and the
◉ Average girdle diameter. Answer: Pavilion depth percentage is
expressed as a percentage of the
COMPREHENSIVE STUDY GUIDE COMPLETE
SOLUTIONS VERIFIED
◉ Colorless to light yellow, brown, and gray. Answer: The normal
color range of diamonds is
◉ Red & purple. Answer: Which of the diamond colors listed here
are the most rare?
◉ M. Answer: Most consumers can easily see color beyond
◉ Heat. Answer: Irradiated diamonds might change color when
exposed to
◉ Z. Answer: Which masterstone does the GIA Laboratory use to
determine the point where a yellow diamond transitions to the
colored diamond grading scale?
◉ Depth of color. Answer: The combination of tone & saturation that
determines how noticeable a color is, is known as
, ◉ Rarity. Answer: The price differences between colorless diamonds
and near-colorless diamonds are due primarily to
◉ Colorless face-up. Answer: When mounted, G, H, and I color
diamonds can look
◉ Heating. Answer: The annealing of irradiated diamonds to
stabilize their color is done by
◉ . Answer: An unattractive gray ring under the table may be
present in diamonds with
◉ Symmetry. Answer: The balance of a finished gem's cut is known
as its
◉ Bow-ties. Answer: On fancy shapes such as the oval or pear,
variations in the pavilion might cause
◉ Pavilion main facets. Answer: The pavilion angel is the angle
formed by the girdle plane and the
◉ Average girdle diameter. Answer: Pavilion depth percentage is
expressed as a percentage of the
