none of the above will touch outside rough.HopeDream|1418833334|3802970 said:Hi Liao,
Brian Gavin does cutting http://www.brianthecutter.com/ and other PS vendors have access to cutters for recuts etc ( Good Old Goldhttp://www.goodoldgold.com/, High Performance Diamonds (If Crafted by Infinity does re-cuts..?) http://www.winkjones.com/etc.).
I believe rough diamonds need certification through the Kimberley Process, before any cutter will cut it for you. http://www.kimberleyprocess.com/en/about.
I don't think any US cutters will cut rough of unknown origin without certification.