I know Holloway Diamonds would, but I don't know any other Aussie jewelers. GIA and AGS would be Worldwide, but EGLUSA likely would not and you DO NOT want EGL otherwise. If I was just buying studs I would go through Blue Nile, though you could also go through a site like Brian Gavin Diamonds. I hate whiteflash with all the fires of hell but they do sell some ready set studs that are great choices if you have no intentions to trade up for larger ones later.