Q1. A mother-of-pearl bead is : less valuable than a pearl.
Q2. Which of the following types of pearls is most likely to be round ?
Ans: An Akoya pearl with very thin nacre.
Q3. Semi-cultured pearls : are imitation pearls.
Q4. A jeweler says his pearls are AAA quality. You should conclude :
Ans: The pearls may be of any quality. There is no standardized pear grading
system, so a
jeweler can assign whatever
meaning he wants to a grade. Even standardized grades
such as those for diamonds are
misued and inflated by some salespeople. Therefore it
is best to base your judgement
of a gem on what is looks like rather than on a grade
assigned to it.
Q5. Which type of lighting will make pearls look the most lustrous ?
Ans: A bare 100-watt light bulb.
Q6. You look in a drill hole of pearl and you see a dark pink line between
the nacre and the
bead nucleus, this means:
Ans: The pearl has been dyed.
Q7. When judging the color of pearls, you should examine them:
Ans: on a white background.
Q8. Which of the following can affect your perception of pearl color?
Ans: The color of the room you are in; The lighting; Alcoholic
beverages.
Q9. Which of the following can affect the way you grade the flaws on a
strand of pearls?
Ans: The background the pearls are viewed against; The lighting;
Your eyesight.
Q10. Which of the following is more valued on black pearls?
Ans: green overtones.
Q11. The size of most natural-color black pearls is usually:
Ans: between 9 and 12 mm.
Q12. A dyed-black pearl may have originally been:
Ans: an off-color Akoya pearl.
a light-color pearl form a black-lip
oyster.
an off-color pearl from an Australian
silver-lip oyster.
But if it is less than 8 mm, it was
probably an off-color Akoya pearl.
Q13. Most cultured freshwater pearls come from: China
Q14. Most freshwater pearls are: baroque
Q15. The general term for any pearl cultivated in a lake, pond or river area is:
Ans: freshwater cultured pearl.
Q16. What factor affects the price of freshwater pearls the least?
Ans: body color
Q17. What determines the shape of a pearl?
Ans: The type of nucleus inserted in the mollusk.
The position of the nucleus in the
mollusk.
Teh length of time the pearl is in
the mollusk.
Q18. A strand feels light in weight. There's a good chance it consists of:
Ans: Plastic imitation pearls.
Q19. Which of the following tests can prove that your pearls are not imitations?
Ans: The surface magnification test. The results of the tooth and overtone tests
are good
indications but they don't
provide positive proof. some imitations feet gritty to the teeth
and have overtones that vary.
Thin-nacre pearls may have no overtones, and polished
pearls may give a smooth
tooth-test reaction.
Q20. Which is typical characteristic of the drill holes of imitation pearls.
Ans: The coating on imitation pearls tends to be very thin, not thick.
Q21. Which of the following is an imitation pearl?
Ans: A semi-cultured pearl; A Majorica pearl; A faux pearl.
Majorica, faux, and
semi-cultured pearls are all imitations.
Q22. Under 10-power magnification the surface of an imitation pearl tends to:
Ans: look grainy.
Q23. If a jeweler can't tell that the pearls you are wearing are imitation
or not this means:
Ans: Even pearl specialists can be fooled by imitations, particularly when
viewing pearls from
a distance. In some
cases, they may need to examine the parts under magnification to
determine that they are
limitation.
Q24. As you rptate a stramd pf "pearls" under a light, they blink and/or
show faint stripes.
This indicates the "pearls"
are:
Ans: imitation or cultured, imitation pearls with shell cores and
translucent coatings can show
stripes like those of
thin-nacre cultured pearls.
Q25. Natural pearls: tend to have smaller drill holes than cultured pearls
and imitaions.
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