Diamond Essentials GEM 130 Questionnaire
Study Guide Exam Questions With Verified
Answers
(A1) A gemstone's resistance to scratching is known as its... - answer✔- hardness
(A1) The small, flat, polished surfaces on a finished diamond are called: - answer✔- facets
(A1) Diamond is composed primarily of: - answer✔- carbon
(A1) The combination of the Four Cs relates primarily to? - answer✔- value
(A1) The three major parts of a polished diamond are the crown, pavilion, and? - answer✔-
girdle
(A1) The flashes of color you see in a polished diamond are called? - answer✔- fire
(A1) Most diamonds used in jewelry are... - answer✔- nearly colorless to very light yellow or
light brown.
(A1) Compared to blemishes, inclusions normally have... - answer✔- more impact on a
diamond's value.
(A1) A standard round brilliant-cut diamond has? - answer✔- 57 or 58 facets.
(A1) The term "point" in reference to weight is equal to? - answer✔- 0.01 carat
(A1) The term brilliant cut is used for gemstones with facets that... - answer✔- are mostly
triangular or kite-shaped.
(A1) On average, mine workers must process more than a ton of rock to recover... - answer✔- a
half carat of diamonds.
(A1) Gem shapes and cutting styles other than the standard round brilliant are called? -
answer✔- fancy cuts
(A1) The metric carat equals: - answer✔- 0.200 grams
(A1) Clarity characteristics confined to the surface of a polished diamond are called? - answer✔-
blemishes
(A2) You should tell your customer that the SI designation means? - answer✔- slightly included
(A2) Which of the following is a result of the bruting process? - answer✔- bearding
(A2) A detailed map of a diamond, showing its clarity characteristics, is called a? - answer✔-
plot
(A2) When part of the rough crystal's original surface is left on a fashioned diamond, it's called
a? - answer✔- natural
(A2) Fracture filling can dramatically affect a diamond's: - answer✔- apparent clarity
(A2) In describing inclusions to customers, which of the following terms would probably be best
to use? - answer✔- Clarity characteristics
(A2) A diamond that's graded Flawless might still have... - 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: -
answer✔- nature
(A2) The most convenient and inexpensive magnifier adequate for diamond grading is the... -
answer✔- loupe
(A2) Clarity characteristics limited to the surface of a diamond are called? - answer✔- blemishes
(A2) An included diamond crystal that extends to the surface of a fashioned diamond is called
a? - answer✔- knot
(A2) The standard magnification used for clarity grading is? - answer✔- 10X
(A2) A diamond with "noticeable" inclusions at 10X would receive which of the following clarity
grades? - answer✔- SI1 or SI2
(A2) The general term for clarity characteristics within a diamond is? - answer✔- inclusions
(A2) The general term for any break in a diamond is? - answer✔- feather
(A3) Most consumers can easily see color beyond? - answer✔- M
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