The jewelry grade (white) diamond that is most valuable is identified as a D-colour stone. In fancy coloured stones, both blue and pink stones are valuable, although red might be the most rare, and therefore the most valuable. See the link, below.
The value of a diamond depends on its cut, its clarity, its colour and its carat weight. A local jeweler can give you the answer you want.
Gem is a word that describes something valuable, beautiful and cherished. The word can be used to describe an art piece, a stone or rock, a person or even an idea. Diamond is indeed a gem, and there are other stones that are also gems: ruby, sapphire, emerald, to name a few.
There is no 'best' cut for diamond stones, since each stone's cut reflects the other valuable aspects of the stone. When a diamond is cut, its innate properties are always considered. Generally, a diamond is cut to minimize the number of visible flaws while maintaining its highest carat weight. Colour may be the largest variable, since colour can be enhanced using radiation. (Some flaws can be minimized using laser technology.) The 'best' diamond is one you can afford that is accompanied by a certified gemologist's report that details its colour, clarity, carat weight and cut. Whenever a diamond has been 'treated', that is also noted on the certificate, and will reduce the value of the diamond.
Of cource another diamond! A diamond is the toughtest rock.
No.
Depends on the quality of the diamond in question.
Of equal weight, gem-quality diamond is more valuable than silver.
Diamonds are more valuable than coal.
yes.
Diamond
Diamond
Brilliant. Valuable. Precious.
no
blue
the hope diamond is the largest. It is in the Smithsonian Museum in Washington D.C.
Which is it made of? Diamond or Iron? This is crucial in knowing whether it is valuable or not.