DCA Diamond Course Exam Questions
& Answers 2025/2026
The diamond council was established in - ANSWERS1944
A ____ is a mineral created by nature - ANSWERSdiamond
Only a fraction of diamonds are ______ - ANSWERSgem quality
A diamond is almost pure ____, and the arrangement of atoms within the diamond is almost
perfectly ______. - ANSWERScarbon, symmetrical
The combination of ____ and _____ is the inner source of a diamond's beauty, durability, and
other remarkable characteristics. - ANSWERSchemistry, structure
The 4 C's - ANSWERSCarat Weight
Clarity
Color
Cut
Slight variations in a diamond's ____ or _______ can have a big impact on whether it is a
fabulous gem or a functional drill bit. - ANSWERSstructure, formation
The standard unit of weight for diamonds is the ______ - ANSWERSmetric carat
, One carat equals _____ gram, or about ____ ounce in common US measurements -
ANSWERS0.200, 0.007
s. Diamonds are weighed to an accuracy of _____ carat - or ____ millionths of an ounce! -
ANSWERS0.005, 35
Carat weight's effect on value is based on ____ _______. - ANSWERSnatural rarity
You can define clarity as a diamond's freedom from features called ____ or _______. -
ANSWERSblemishes, inclusions
________ are surface irregularities such as scratches. - ANSWERSBlemishes
_______ are internal - for example, tiny crystals of other minerals. - ANSWERSInclusions
_______ _____are assigned based on the visibility of the characteristics and how they influence
appearance and durability. - ANSWERSclarity grades
_____ normal impact clarity grade more than blimshes. - ANSWERSInclusions
_____effect on value relates to rarity. - ANSWERSclarity's
The fewer or less prominent clarity characteristics, the _____ the clarity grade. -
ANSWERShigher
Most diamonds used in jewelry range from near colorless to ____, ____ or ______. -
ANSWERSlight yellow, brown, or gray
& Answers 2025/2026
The diamond council was established in - ANSWERS1944
A ____ is a mineral created by nature - ANSWERSdiamond
Only a fraction of diamonds are ______ - ANSWERSgem quality
A diamond is almost pure ____, and the arrangement of atoms within the diamond is almost
perfectly ______. - ANSWERScarbon, symmetrical
The combination of ____ and _____ is the inner source of a diamond's beauty, durability, and
other remarkable characteristics. - ANSWERSchemistry, structure
The 4 C's - ANSWERSCarat Weight
Clarity
Color
Cut
Slight variations in a diamond's ____ or _______ can have a big impact on whether it is a
fabulous gem or a functional drill bit. - ANSWERSstructure, formation
The standard unit of weight for diamonds is the ______ - ANSWERSmetric carat
, One carat equals _____ gram, or about ____ ounce in common US measurements -
ANSWERS0.200, 0.007
s. Diamonds are weighed to an accuracy of _____ carat - or ____ millionths of an ounce! -
ANSWERS0.005, 35
Carat weight's effect on value is based on ____ _______. - ANSWERSnatural rarity
You can define clarity as a diamond's freedom from features called ____ or _______. -
ANSWERSblemishes, inclusions
________ are surface irregularities such as scratches. - ANSWERSBlemishes
_______ are internal - for example, tiny crystals of other minerals. - ANSWERSInclusions
_______ _____are assigned based on the visibility of the characteristics and how they influence
appearance and durability. - ANSWERSclarity grades
_____ normal impact clarity grade more than blimshes. - ANSWERSInclusions
_____effect on value relates to rarity. - ANSWERSclarity's
The fewer or less prominent clarity characteristics, the _____ the clarity grade. -
ANSWERShigher
Most diamonds used in jewelry range from near colorless to ____, ____ or ______. -
ANSWERSlight yellow, brown, or gray
