Omega Diamond's Headquarters and primary R&D facility is located at:

10125 Ophir Rd
Newcastle, CA 95658-9504

Call us:

  • Toll Free: 1-888-996-4777 in USA
  • Local, or overseas, 1-530-889-8977
  • Fax: 1-530-885-3785


  • Monday - Thursday 8:00 am - 5:00 pm PST
  • Friday 8:00 am - 5:00 PM or Sundown PST, whichever comes first.


You can also leave a message using the contact form below and we will get back in contact with you as soon as possible.

Please note that no information sent will be considered proprietary or confidential.