It depends on several factors. A diamond is judged on four qualities (known as the four C's): carat, color, clarity, and cut. Each of these things plays a part in determing the price of the diamond....
Every diamond is valued by its cut, colour, clarity and carat weight. You can purchase a single stone of approximately this carat weight today on Blue Nile and pay between US$675 and US$4,353,...
Diamonds are measured in CARATS. Purity of gold is in KARATS. A 14 carat diamond would be an extremely large diamond- about the size of a marble. Value is based on carat weight, cut, color, and...
Industrial grade that will be used to make drill bits and saw blades, about $2,000 on up (adjusting from prices thirty years ago). Highest grade diamonds have to be appraised, but a perfectly cut...