Laser welding in Sydney?

Hi, I have a sterling silver where unfortunately one of the jump
rings came off after I bezel set all of my paua shells. Does anyone
know a laser welder around Sydney where I could get this fixed?
Taking out the bezel isn’t an option because the setting is somewhat
deep and it would be a real hassle trying to do it. It’s part of a
necklace with about 50 other jump rings close by so I need a
concentrated heat source just in that one area.

Thank you!