CS 17

Question 1

To bleach akoya pearls, processors use

Answer 1

Selected Answer: D. a combination of hydrogen peroxide and fluorescent light.

Question 2

When mollusks live in cooler water, they form

Answer 2

pearls with higher luster

Question 3

In pearl culturing, the most difficult shape to produce is

Answer 3

round

Question 4

Pearls that show noticeable blemishes are

Answer 4

moderately spotted

Question 5

The trade term for Tahitian cultured pearls with a dark green-gray to blue-gray bodycolor and rosé to purple overtones is

Answer 5

peacock

Question 6

Pearl colors tend to be

Answer 6

low in saturation

Question 7

What happens when saltwater cultured pearls are exposed to gamma rays?

Answer 7

Bead nucleus darkens

Question 8

The nacre quality classification described as “Nucleus not noticeable, no chalky appearance” is

Answer 8

acceptable

Question 9

The best way to clean pearls is with

Answer 9

warm, mild soapy water

Question 10

Essence d’orient is a mixture of

Answer 10

fish scales and varnish.

Question 11

At most pearl farms, post-harvest procedures consist of washing and

Answer 11

polishing in a solution of water and salt.

Question 12

Which overtone color increases the value of akoya cultured pearls with white bodycolor?

Answer 12

Rosé

Question 13

Usually, the diameters of the cultured pearls in a strand vary from each other by no more than

Answer 13

. 0.5 mm.

Question 14

The matching level that describes a group of pearls with minor variations in uniformity is

Answer 14

good

Question 15

A procedure that includes cleaning, buffing, and sometimes bleaching, done to make cultured pearls presentable and appealing, is called

Answer 15

a process