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Gemstones questions

This is a list of recently added questions about gemstones.
How can you cut a diamond?
using a knife
282
using a diamond
10411
using gold
514
using a gas
2498
Diamond is the hardest substance in the world. Hence it can be cut only by using a diamond.
Shruthi Srinivasan
0
Correct this question
3
Very interesting!
Materials questions
What colour is sapphire colour a shade of?
red
1061
green
1718
blue
5643
purple
1071
The name of the colour comes from sapphire, a blue variety of the corundum.
Paweł Kołodziejczyk
0
Correct this question
0
Very interesting!
Colors questions
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