CBJ Gemstone and Setting Techniques 3

Question 1

What should a bench jeweler verify before beginning to set a gemstone?

Accepted Answer

That the stone's dimensions match the seat accurately

Answer

Verifying that the stone's dimensions match the prepared seat ensures a proper, secure fit before the setting process begins.

Question 2

What tool is used to push and smooth prongs over the girdle of a set stone?

Accepted Answer

Burnisher

Answer

A burnisher is a smooth, polished tool used to press and blend metal prongs over the girdle of a stone, securing it without scratching.

Question 3

What is the function of a bead raiser in pavé stone setting?

Accepted Answer

To lift a small bead of metal from the surface that will hold the stone

Answer

A bead raiser lifts a tiny bead of metal from the surrounding surface, creating a small prong that holds each pavé stone in place.

Question 4

Which setting type offers the most protection for fragile stones such as opals or emeralds?

Accepted Answer

Bezel setting

Answer

A bezel setting provides the greatest protection for fragile stones by surrounding the entire girdle with a continuous metal wall.

Question 5

What is 'undercutting' in the context of bezel setting?

Accepted Answer

Creating an inner ledge inside the bezel for the stone's girdle to rest on

Answer

Undercutting creates a small inner ledge inside the bezel wall against which the stone's girdle rests, setting it at the correct height and securing it firmly.

(CBJ) Certified Bench Jeweler Practice Test

(CBJ) Certified Bench Jeweler Practice Test

CBJ Gemstone and Setting Techniques 3