DIAMOND ESSENTIALS GEM 130 QUESTIONNAIRE STUDY GUIDE QUESTIONS WITH CORRECT ANSWERS.

DIAMOND ESSENTIALS GEM 130 QUESTIONNAIRE STUDY
GUIDE QUESTIONS WITH CORRECT ANSWERS

(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

, (A2) In describing inclusions to customers, which of the following terms would probably be best
to use? - CORRECT ANSWER -- Clarity characteristics



(A2) A diamond that's graded Flawless might still have... - CORRECT ANSWER -- extra facets on
the pavilion not visible face up.



(A2) One of the five factors that determines the overall effect of inclusions on clarity is: -
CORRECT ANSWER -- nature



(A2) The most convenient and inexpensive magnifier adequate for diamond grading is the... -
CORRECT ANSWER -- loupe



(A2) Clarity characteristics limited to the surface of a diamond are called? - CORRECT ANSWER --
blemishes



(A2) An included diamond crystal that extends to the surface of a fashioned diamond is called a?
- CORRECT ANSWER -- knot



(A2) The standard magnification used for clarity grading is? - CORRECT ANSWER -- 10X



(A2) A diamond with "noticeable" inclusions at 10X would receive which of the following clarity
grades? - CORRECT ANSWER -- SI1 or SI2



(A2) The general term for clarity characteristics within a diamond is? - CORRECT ANSWER --
inclusions



(A2) The general term for any break in a diamond is? - CORRECT ANSWER -- feather