Quiz Form – Check Your Gemology Quotient

The 4 Cs of diamonds stand for Carat, Clarity, Cut and…

Cost

Color

Country

Cleanliness

Which shape of diamond is best known for its vivid sparkle and contrast?

Emerald Cut

Princess Cut

Round Brilliant

Marquise Brilliant

Where were diamonds first discovered and brought to trading markets?

India

Africa

South America

North America

What is the unit used to measure the weight of gemstones?

Gram

Carat

Karat

Milligram

Which color grade represents a completely colorless diamond?

Z

M

D

G

What is the coolest thing about diamonds besides their sparkle?

They’re made from carbon – like pencils

Formed by pressure equivalent to 640 African elephants on a ballet shoe tip

They form deep inside the Earth

All of the above – seriously cool!

What is a lab-grown diamond?

Diamond look-alike

Diamond simulant

Man-made diamond with identical properties as natural

Fake crystal

What are the only materials ranked "10" on the 1-10 Mohs hardness scale?

Natural diamonds and moissannite

Natural diamonds and tungsten carbide

Tungsten carbide and reinforced steel

Natural diamonds and lab grown diamonds

Which of these is a birthstone for July?

Ruby

Sapphire

Emerald

Garnet

Which of these gems changes colour under different lighting – like magic?

Spinel

Tanzanite

Alexandrite

Zircon

Which country is most historically known for high-quality emeralds?

India

Brazil

Columbia

Australia

What country began producing similarly high-quality emeralds in the 1980s?

Madagascar

Brazil

Pakistan

Zambia

Which gem displays a "play of colors," looking like a rainbow?

Citrine

Lapis Lazuli

Opal

Peridot

If a gem has "inclusions," what does that mean?

Its broken

Its man-made

It has tiny internal features

It changes shape

Pearls are formed inside…?

Geodes and agates

Oysters and mollusks

Cephalopods

Kimberlite Pipes

Which of these is not an organic gem?

Jet

Amber

Coral

Almandine

Amethyst belongs to which gemstone family?

Diamond

Topaz

Quartz

Corundum

What is the gemological term for star effect?

Metamerism

Asterism

Magnetism

Chatoyancy

Which gemstone is linked to good luck, wisdom and Jupiter in astrology?

Diamond

Blue Topaz

Yellow Sapphire

Aquamarine

What’s the unique thing about a cat’s eye gemstone?

It’s shaped like a cat face

It has whisker-like graining

It has a bright luminous band that slides across the surface

It shows two perpendicular lines from every angle

Take the Quiz – Check Your Gemology Quotient