Green Gemstone

These gemstones have held a place of prominence in civilizations since ancient Chinese, Egyptian, Greek and Roman times.

• Emerald & Jadeite

• Alexandrite & Peridot

• Rubellite & Tourmaline

• Tsavorite & Green Sapphire

While not all stones are formed in the same way, it’s thought that green gemstones are so coloured due to traces of?

• Boron

• Nitrogen

• Chromium

• Aluminium

Which of these gemstones are from the Garnet Family?

• Emerald

• Tsavorite

• Demantoid Garnet

• Alexandrite

What is gemstone luster?

• It is described as how much light passes through a gem and how it scatters.

• It is described as how a gem's surface looks when it reflects light.

• It is to measures the difference between the speed of light in air and the speed of light in a stone.

What are the common treatment for Emerald stone?

• Heat-treated

• Irradiation

• Oiling, waxing & filling

• Diffused

What are the trace elements for Emerald stone?

• Iron

• Chromium or Vanadium

• Nitrogen

• Calcium

What are the hardness for Tsavorite stone?

• 7 to 7.5 Moh’s Scale

• 6 to 6.5 Moh’s Scale

• 8.5 Moh’s Scale

• 5 Moh’s Scale

What are the finest tones for Tsavorites

• 6-7 Range

• 5-6 Range

• 4-5 Range

• 3-4 Range

Demantoid Garnet known for its _______ inclusions.

• Tiger Stripe

• Three-Phase

• Horsetail

• Colour Zoning

Peridot belongs to which family of gemstones?

• Olivine

• Garnet

• Corundum

• Beryl