Free CGC Gemstone Grading & Evaluation Questions and Answers

Question 1

What is the primary criterion used for grading gemstones?

Accepted Answer

Color, clarity, cut, and carat weight

Answer

Size and weight

Answer

Shape and origin

Answer

Price and demand

Question 2

Which gemstone characteristic determines its clarity grade?

Accepted Answer

Inclusions and blemishes

Answer

Color

Answer

Cut symmetry

Answer

Carat weight

Question 3

What does 'cut' refer to in gemstone grading?

Accepted Answer

The symmetry and proportions of the gemstone

Answer

The shape of the gemstone

Answer

The weight of the gemstone

Answer

The origin of the gemstone

Question 4

How does the carat weight of a gemstone impact its value?

Accepted Answer

The larger the carat, the higher the value

Answer

It has no impact on value.

Answer

Larger stones are always cheaper.

Answer

The weight does not impact value.

Question 5

What does a gemstone's color grade depend on?

Accepted Answer

Hue, tone, and saturation

Answer

The gem's price

Answer

The gem's origin

Answer

The cut of the gem

Question 6

What is the highest possible clarity grade for a gemstone?

Accepted Answer

Flawless

Answer

VVS1

Answer

SI1

Answer

VS2

Question 7

Which gemstone grading system is most commonly used by professionals?

Accepted Answer

GIA grading system

Answer

IGI grading system

Answer

AGS grading system

Answer

CGL grading system

Question 8

What is the standard measurement used for grading gemstones' size?

Accepted Answer

Carats

Answer

Grams

Answer

Millimeters

Answer

Ounces

Question 9

What role does a gemologist play in gemstone grading?

Accepted Answer

They grade and evaluate gemstones' quality

Answer

They create gemstones.

Answer

They authenticate gemstones.

Answer

They sell gemstones.