The 4C's of Diamonds. We'll explains the Four C's- cut, color, clarity, and carat weight - the most important characteristics of buying a diamond.
Diamonds in the D-to-Z color range are valued by how closely they approach colorlessness – the less color, the higher their value.
Diamonds and gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the weight of a paperclip.