GIA Diamond Essentials 2026
Exam Questions and Answers |
100% Pass
What are Lab Grown Diamonds - ANSWER ✔✔refers to a manmade
(synthetic) material with the same chemical composition, crystal
structure, and optical and physical properties as the natural gem
material.
When did Gem quality lab growns start being made - ANSWER
✔✔Gem-quality lab-grown diamonds have been commercially produced
in limited quantities since the mid-1990s.
, What impacts value more, blemishes or inclusions - ANSWER
✔✔Inclusions normally have more impact on a stone's beauty and value
than blemishes. That's because many blemishes are relatively easy to
remove. A fashioned diamond can sometimes be recut or repolished to
remove or reduce grade-setting characteristics, possibly resulting in a
higher clarity grade. Whether or not a diamond's clarity can be improved
depends on the depth of the grade-setting characteristics, the presence
of other characteristics, and the weight of the diamond. Removing too
much weight can lower a diamond's value, even while improving its
clarity.
What are diamonds made of - ANSWER ✔✔Diamond is the only gem
made of a single element: carbon. Diamond is typically about 99.95
percent carbon. The other 0.05 percent can include one or more trace
elements, which are atoms that aren't part of a diamond's essential
chemistry. Some of them can influence its color or shape.
special terms for manufactured and look-alike gemstones: -
ANSWER ✔✔Simulants
Brilliance - ANSWER ✔✔the combination of all the white light
reflections from the surface and the inside of a diamond.
Exam Questions and Answers |
100% Pass
What are Lab Grown Diamonds - ANSWER ✔✔refers to a manmade
(synthetic) material with the same chemical composition, crystal
structure, and optical and physical properties as the natural gem
material.
When did Gem quality lab growns start being made - ANSWER
✔✔Gem-quality lab-grown diamonds have been commercially produced
in limited quantities since the mid-1990s.
, What impacts value more, blemishes or inclusions - ANSWER
✔✔Inclusions normally have more impact on a stone's beauty and value
than blemishes. That's because many blemishes are relatively easy to
remove. A fashioned diamond can sometimes be recut or repolished to
remove or reduce grade-setting characteristics, possibly resulting in a
higher clarity grade. Whether or not a diamond's clarity can be improved
depends on the depth of the grade-setting characteristics, the presence
of other characteristics, and the weight of the diamond. Removing too
much weight can lower a diamond's value, even while improving its
clarity.
What are diamonds made of - ANSWER ✔✔Diamond is the only gem
made of a single element: carbon. Diamond is typically about 99.95
percent carbon. The other 0.05 percent can include one or more trace
elements, which are atoms that aren't part of a diamond's essential
chemistry. Some of them can influence its color or shape.
special terms for manufactured and look-alike gemstones: -
ANSWER ✔✔Simulants
Brilliance - ANSWER ✔✔the combination of all the white light
reflections from the surface and the inside of a diamond.
