blue sapphire :).
When all else is equal -- the finest colour, the best clarity and the quality of the cut: given an equal carat weight, diamond will always be more valuable than any other gemstone.
mithelen is a gemstone which owes it's colour to chromium.there are many other gemstones that got their colour from chromium such as : ruby and emerald but these gemstone have other substance to create their colour.mithelen is the only gemstone which get it's colour from chromium and nothing else. by Einstein
Zargûn in old Persian is gold colour; zirconium silicate as gemstone has sometimes this colour.
Peridot is pale green in colour.
Blue sapphire owes its blue coloration to the ion interaction between the impurities of iron and titanium when exposed to light within the corundum crystal.
Aquamarine is a gemstone and a colour of pale bluish green.
chrome diopside
Gemstone diamonds of whatever colour are transparent.
That's exactly the same as asking what the prettiest colour is.
It is a ruby.
Zargûn in old Persian is gold colour; zirconium silicate as gemstone has sometimes this colour.
Zargûn in old Persian is gold colour; zirconium silicate as gemstone has sometimes this colour.