GIA Diamond Treatments and Synthetics

Question 1

What is a common treatment used to improve a diamond’s clarity?

Accepted Answer

Laser drilling

Answer

Heat treatment

Answer

Polishing

Answer

Bleaching

Question 2

What are synthetic diamonds?

Accepted Answer

Man-made diamonds with identical properties to natural ones

Answer

Fake stones

Answer

Diamonds with inclusions

Answer

Treated simulants

Question 3

Which process is commonly used to produce synthetic diamonds?

Accepted Answer

CVD

Answer

Ion exchange

Answer

Diffusion coating

Answer

Laser imprinting

Question 4

What is the purpose of fracture filling in diamonds?

Accepted Answer

Fill cracks to enhance clarity

Answer

Improve carat weight

Answer

Increase color grade

Answer

Create new inclusions

Question 5

How can synthetic diamonds be identified?

Accepted Answer

Advanced laboratory testing

Answer

By weight alone

Answer

Visual inspection

Answer

Color intensity

Question 6

Which disclosure is required for treated or synthetic diamonds?

Accepted Answer

Must disclose to all buyers

Answer

No disclosure required

Answer

Only for jewelry stores

Answer

Only when defects are visible