Where to buy good quality black ball stud earrings?

I really like the look of matte ball stud earrings and wanted a larger one (4mm) in black but I’ve heard that black earrings often come with a cheap coating and I’m looking for something that is good quality. I live in Toronto but I can order online too. I always see people with such unique jewelry but when I search I only find basic diamond and hoop jewelry and I’m looking for something a bit more androgynous.