Diamond

Diamond is the hardest mineral on earth commanding a 10 on the Mohs
hardness scale. It has an extremely high refractive index creating that
dispersion or rainbow effect known to diamonds. They are one of the
best-known and most sought-after gemstones. The hardness of diamond and
its high dispersion of light gives diamond its characteristic “fire”
making it an ideal gemstone for jewelry, especially wedding jewelry.

Diamonds are graded based on the “four Cs”; color, cut, clarity, and
carat. Other characteristics, such as presence of lack of florescence,
also affect the desirability and value of a diamond.