| Business | Phone |
| Bts Inc 5456 Nicollet Ave, Minneapolis 55419 | (612) 825-6833 |
| Gem Resources Intl 420 N 5th St # 1096, Minneapolis 55401 | (612) 664-0252 |
| Gemco International 12 S 6th St # 1012, Minneapolis 55402 | (612) 341-0009 |
| Hansa Corp 3039 Lyndale Ave S, Minneapolis 55408 | (612) 821-1072 |
| Lionsgate Diamond Corp 5353 Wayzata Blvd, Minneapolis 55416 | (952) 545-7553 |
| Sylvester & Co 4306 Upton Ave S, Minneapolis 55410 | (612) 920-6721 |
| Team Titanium 5201 Eden Ave # 50, Minneapolis 55436 | (952) 830-1412 |
| R T Morgan Fine Jeweler's Po Box 2108, Minneapolis 55402 | (612) 333-4131 |
| Rychlik Designs Inc 12 S 6th St # 508, Minneapolis 55402 | (651) 773-0272 |