The Kohinoor
diamonds
It is diamonds
rubies are the most valuable, but the shape and certain sizes can change the costs or the different gems if you got 1 kilo of each gem then diamonds are worth the most
A valuable rock is a gem.
the red diamond
Gem
Red.
ruby!
Yes, if it is a gem-stone quality diamond.
gems
Not a diamond.I know that
By weight, a gem-stone quality diamond is more valuable than oil.