Where can you have a rough diamond refined?

Answer 1

You need to find a diamond cutter interested in refining your rough diamond.

You may be able to locate one in a major diamond-cutting geography, such as 47th Street in Manhattan, New York, Antwerp, London or India.

Best practices dictate that you have your rough diamond certified by a gemologist, so that you have an idea of its natural colour and clarity. Then, when working with the diamond cutter, you can plan the best cut to preserve the highest carat weight for the stone.

Plan, however, to lose about 60% of the current, raw carat weight in the process.

Finally, the gemologist may be the best source to aim you toward the diamond cutter you want to find.