Just like any other hard-fork, Ledger has supported it at some point. It takes Ledger days, and some times weeks to finally hand out the coins. BUT don't stress too much, theres already enough of that happening right now with BTC spiking, Ledger will support this new fork. (IMOHO)
So far there's no official news on the Ledger Wallet website, so everything is speculation at the moment. But this is an incredible coin thats being created, and its a 10:1 ratio coin. That means for every 1 BTC you own, Bitcoin Diamond will match with 10 of their own. This hard-fork will effectively multiply the BTC supply by 10x. With numbers like that, Ledger we have to work with this fork.
Stay patient, hang on to your BTC, and don't panic!
Thanks again everyone, I really appreciate all the support you've been giving me.
-Steve
@Jacuzzisurfer