How much would a 15 carat diamond ring cost?

Since diamonds are valued according to more than the carat weight, including colour, cut and clarity, you can shop at a local jeweler who can show you stones of this category, or refer you to someone who can.

Shopping today on Blue Nile, where diamonds weighing just over 15 carats are available, you can buy one and spend between US$625,000 and US$1,558,000, depending on the cut, clarity and colour of the diamond you choose.