GIA DIAMOND ESSENTIALS FINAL EXAM
SCRIPT 2026 TESTED QUESTIONS WITH
COMPLETE SOLUTIONS GRADED A+
⩥ Color. Answer: How are gem-quality rough diamonds sorted?
⩥ Baby Boomers. Answer: What generation was first to connect with
diamonds as a representation of lifetime commitment?
⩥ India. Answer: Where did the diamond industry first start?
⩥ Single-channel marketing. Answer: What describes the concept of
centrally controlled supply, purchase, promotion, and sales of rough
diamonds?
⩥ Lower mantle. Answer: What mantle layer is most dense?
⩥ Will turn into graphite. Answer: What happens to diamond if
lamproite stalls in the continental crust?
⩥ When a continental and oceanic plate collide. Answer: When does
subduction occur?
,⩥ High heat and high pressure. Answer: How are metamorphic rocks
formed?
⩥ CLIPPIR diamonds, blue diamonds, Brazil's Junia diamond. Answer:
What is an example of a superdeep diamond?
⩥ A good sign that a pipe is nearby. Answer: What might black spinel in
a mineral sample indicate?
⩥ Robotic/automated crawlers. Answer: What equipment might offshore
deep-sea diamond mining use?
⩥ Primary deposits. Answer: What deposit type produces most
diamonds mined today?
⩥ Character sampling. Answer: What type of sampling gives an initial
idea of diamond quality for a deposit?
⩥ Brazil. Answer: Where are rocks and geological structures similar to
Africa found due to ancient connections?
⩥ Crystal structure. Answer: What is another term for crystal lattice?
⩥ Type Ia. Answer: What type are most natural diamonds?
, ⩥ Cleavage. Answer: What is a smooth, flat break in a crystal parallel to
a cleavage plane?
⩥ Macle. Answer: What is a flat, triangular, twinned diamond crystal?
⩥ Intrinsic defect and extrinsic defects. Answer: What types of point
defects are found in diamonds?
⩥ Color center. Answer: What influences light absorption, resulting in
bodycolor?
⩥ Hydrogen-related defects. Answer: What trace element can cause a
violet color in diamonds?
⩥ Lower. Answer: How does the energy emitted by a gem compare to
the energy it absorbs?
⩥ White light. Answer: What type of light combines all the colors in the
visible spectrum?
⩥ Nitrogen defects. Answer: What is the most common cause of yellow
color in diamonds?
SCRIPT 2026 TESTED QUESTIONS WITH
COMPLETE SOLUTIONS GRADED A+
⩥ Color. Answer: How are gem-quality rough diamonds sorted?
⩥ Baby Boomers. Answer: What generation was first to connect with
diamonds as a representation of lifetime commitment?
⩥ India. Answer: Where did the diamond industry first start?
⩥ Single-channel marketing. Answer: What describes the concept of
centrally controlled supply, purchase, promotion, and sales of rough
diamonds?
⩥ Lower mantle. Answer: What mantle layer is most dense?
⩥ Will turn into graphite. Answer: What happens to diamond if
lamproite stalls in the continental crust?
⩥ When a continental and oceanic plate collide. Answer: When does
subduction occur?
,⩥ High heat and high pressure. Answer: How are metamorphic rocks
formed?
⩥ CLIPPIR diamonds, blue diamonds, Brazil's Junia diamond. Answer:
What is an example of a superdeep diamond?
⩥ A good sign that a pipe is nearby. Answer: What might black spinel in
a mineral sample indicate?
⩥ Robotic/automated crawlers. Answer: What equipment might offshore
deep-sea diamond mining use?
⩥ Primary deposits. Answer: What deposit type produces most
diamonds mined today?
⩥ Character sampling. Answer: What type of sampling gives an initial
idea of diamond quality for a deposit?
⩥ Brazil. Answer: Where are rocks and geological structures similar to
Africa found due to ancient connections?
⩥ Crystal structure. Answer: What is another term for crystal lattice?
⩥ Type Ia. Answer: What type are most natural diamonds?
, ⩥ Cleavage. Answer: What is a smooth, flat break in a crystal parallel to
a cleavage plane?
⩥ Macle. Answer: What is a flat, triangular, twinned diamond crystal?
⩥ Intrinsic defect and extrinsic defects. Answer: What types of point
defects are found in diamonds?
⩥ Color center. Answer: What influences light absorption, resulting in
bodycolor?
⩥ Hydrogen-related defects. Answer: What trace element can cause a
violet color in diamonds?
⩥ Lower. Answer: How does the energy emitted by a gem compare to
the energy it absorbs?
⩥ White light. Answer: What type of light combines all the colors in the
visible spectrum?
⩥ Nitrogen defects. Answer: What is the most common cause of yellow
color in diamonds?
