Assignment 18 - Diamond Simulants

Which of the following has a waxy to granular girdle surface? CZ, GGG, Diamond, Synthetic Rutile.

Diamond.

A stone formed by cementing two separate pieces of material together is called a

Doublet.

The easiest way to separate diamond from synthetic moissanite is by checking for

Doubling.

The easiest way to separate diamond from zircon is checking for

Doubling.

Diamond imitations called "paste" are actually

Glass.

Diamond Simulants

Only look like diamonds.

Which of the following is a natural gem? Zircon, YAG, GGG, Strotinum Titanate.

Ziron.

Which of the following properties is higher in GGG than diamond?

Specific Gravity

The thermal diamond tester helps separate diamond from most simulants because of diamonds excellent ability to

Conduct heat.

All diamond simulants rank lower than diamond in

Hardness.

Some diamond simulants display "see-through" because, compared to diamond, they

Have much larger critical angles.

The term "diamond simulant"

Refers to a stone that looks like a diamond but has different optical, physical, and chemical properties.

A diamond imitation that's foilbacked or composed of colorless lead-glass might be called a

Rhinestone.

Which diamond simulant shows noticeable doubling and strong fire? CZ, Zircon, Synthetic Rutile, or Strontium Titanate?

Synthetic Rutile.

The easiest way to separate diamond from synthetic cubic zirconia is by checking for

Thermal conductivity.