Gemology Certification Gemstone Cutting & Lapidary Arts

Question 1

What cutting style features a flat top (table) and a series of facets angling down to a pointed base called the culet?

Accepted Answer

Brilliant cut

Answer

Cabochon cut

Answer

Rose cut

Answer

Step cut

Question 2

Which lapidary term describes the ratio of a gemstone's depth to its girdle diameter, critical for light performance?

Accepted Answer

Depth percentage

Answer

Table percentage

Answer

Crown angle

Answer

Pavilion angle

Question 3

A 'windowed' gemstone is one in which light passes straight through rather than reflecting back to the eye — what cutting fault causes this?

Accepted Answer

Pavilion angles too shallow

Answer

Table too small

Answer

Crown too high

Answer

Girdle too thick

Question 4

What is the name of the thin band that forms the outer edge of a faceted gemstone, separating the crown from the pavilion?

Accepted Answer

Girdle

Answer

Culet

Answer

Table

Answer

Bezel

Question 5

In faceting, what does the term 'crown angle' refer to?

Accepted Answer

Angle of the upper facets relative to the girdle plane

Answer

Angle of the pavilion facets

Answer

The number of facets on the crown

Answer

The height of the table above the girdle

Question 6

Which cutting style is preferred for gemstones with strong color saturation because it maximizes color retention rather than brilliance?

Accepted Answer

Step cut

Answer

Brilliant cut

Answer

Mixed cut

Answer

Briolette cut