DIAMOND ESSENTIALS GEM 130 QUESTIONNAIRE STUDY GUIDE
2025–2026 FULL EXAM REVISION FLASHCARDS INCLUDING
VERIFIED PRACTICE QUESTIONS, STEP-BY-STEP ANSWERS,
AND CORE CONCEPTS FOR ALL TOPICS”
(A1) A gemstone's resistance to scratching is known as its... - CORRECT ANSWER -- hardness
(A1) The small, flat, polished surfaces on a finished diamond are called: - CORRECT ANSWER --
facets
(A1) Diamond is composed primarily of: - CORRECT ANSWER -- carbon
(A1) The combination of the Four Cs relates primarily to? - CORRECT ANSWER -- value
(A1) The three major parts of a polished diamond are the crown, pavilion, and? - CORRECT
ANSWER -- girdle
(A1) The flashes of color you see in a polished diamond are called? - CORRECT ANSWER -- fire
(A1) Most diamonds used in jewelry are... - CORRECT ANSWER -- nearly colorless to very light
yellow or light brown.
(A1) Compared to blemishes, inclusions normally have... - CORRECT ANSWER -- more impact on
a diamond's value.
(A1) A standard round brilliant-cut diamond has? - CORRECT ANSWER -- 57 or 58 facets.
(A1) The term "point" in reference to weight is equal to? - CORRECT ANSWER -- 0.01 carat
, (A1) The term brilliant cut is used for gemstones with facets that... - CORRECT ANSWER -- are
mostly triangular or kite-shaped.
(A1) On average, mine workers must process more than a ton of rock to recover... - CORRECT
ANSWER -- a half carat of diamonds.
(A1) Gem shapes and cutting styles other than the standard round brilliant are called? -
CORRECT ANSWER -- fancy cuts
(A1) The metric carat equals: - CORRECT ANSWER -- 0.200 grams
(A1) Clarity characteristics confined to the surface of a polished diamond are called? - CORRECT
ANSWER -- blemishes
(A2) You should tell your customer that the SI designation means? - CORRECT ANSWER -- slightly
included
(A2) Which of the following is a result of the bruting process? - CORRECT ANSWER -- bearding
(A2) A detailed map of a diamond, showing its clarity characteristics, is called a? - CORRECT
ANSWER -- plot
(A2) When part of the rough crystal's original surface is left on a fashioned diamond, it's called
a? - CORRECT ANSWER -- natural
(A2) Fracture filling can dramatically affect a diamond's: - CORRECT ANSWER -- apparent clarity
2025–2026 FULL EXAM REVISION FLASHCARDS INCLUDING
VERIFIED PRACTICE QUESTIONS, STEP-BY-STEP ANSWERS,
AND CORE CONCEPTS FOR ALL TOPICS”
(A1) A gemstone's resistance to scratching is known as its... - CORRECT ANSWER -- hardness
(A1) The small, flat, polished surfaces on a finished diamond are called: - CORRECT ANSWER --
facets
(A1) Diamond is composed primarily of: - CORRECT ANSWER -- carbon
(A1) The combination of the Four Cs relates primarily to? - CORRECT ANSWER -- value
(A1) The three major parts of a polished diamond are the crown, pavilion, and? - CORRECT
ANSWER -- girdle
(A1) The flashes of color you see in a polished diamond are called? - CORRECT ANSWER -- fire
(A1) Most diamonds used in jewelry are... - CORRECT ANSWER -- nearly colorless to very light
yellow or light brown.
(A1) Compared to blemishes, inclusions normally have... - CORRECT ANSWER -- more impact on
a diamond's value.
(A1) A standard round brilliant-cut diamond has? - CORRECT ANSWER -- 57 or 58 facets.
(A1) The term "point" in reference to weight is equal to? - CORRECT ANSWER -- 0.01 carat
, (A1) The term brilliant cut is used for gemstones with facets that... - CORRECT ANSWER -- are
mostly triangular or kite-shaped.
(A1) On average, mine workers must process more than a ton of rock to recover... - CORRECT
ANSWER -- a half carat of diamonds.
(A1) Gem shapes and cutting styles other than the standard round brilliant are called? -
CORRECT ANSWER -- fancy cuts
(A1) The metric carat equals: - CORRECT ANSWER -- 0.200 grams
(A1) Clarity characteristics confined to the surface of a polished diamond are called? - CORRECT
ANSWER -- blemishes
(A2) You should tell your customer that the SI designation means? - CORRECT ANSWER -- slightly
included
(A2) Which of the following is a result of the bruting process? - CORRECT ANSWER -- bearding
(A2) A detailed map of a diamond, showing its clarity characteristics, is called a? - CORRECT
ANSWER -- plot
(A2) When part of the rough crystal's original surface is left on a fashioned diamond, it's called
a? - CORRECT ANSWER -- natural
(A2) Fracture filling can dramatically affect a diamond's: - CORRECT ANSWER -- apparent clarity
