Where can I buy a DIA?

Excuse me, could you please clarify for me where exactly I can purchase a DIA? I've been hearing a lot about it recently and I'm interested in investing in it, but I'm not sure where to find it. Is it available on any major cryptocurrency exchanges? Or perhaps there's a specific platform or marketplace where DIA is primarily traded? I'd really appreciate any guidance you can provide in helping me find the best place to buy DIA.