Indeed, when polished, it is a valuable gemstone. It is made of pure carbon, and is the hardest substance known. But not all diamonds are of equal hardness - or otherwise it would be difficult to polish it.
A diamond
Yes, a diamond is a precious gemstone.
a diamond
Depends on what it actually is. If it's a Zircon (Cubic Zirconia), a Spinel or a synthetic Diamond then yes, it is still a gemstone.
A diamond is a gemstone.
It is a one-quarter carat gemstone.
Yes there is it is Diamond
A gemstone that is ruled by Aries is the diamond.
The name of the gemstone which comes from the Greek word adamastos, which means invincible is the diamond.
Pearl is made by a living organism (an oyster) and is soft. Diamond is made deep in the earth and is the hardest substance known to man.
A two-carat diamond is a gemstone that weighs two carats.
The phrase 'white commercial diamond' probably describes a gemstone.