How to Claim Bitcoin Diamond from Ledger / Trezor Wallet
Open up Bitcoin Diamond Wallet, Type your Wallet Name and Click NEXT
Select Standard Wallet and Click NEXT
Select 'I already have a seed' and click NEXT
Type your Ledger or Trezor seed and Click Options
Select BIP39 SEED and Click OK
Select p2sh-segwit BIP49 and NEXT, set your wallet password
and your ready to import your Bitcoin Diamond from Ledger or Trezor Wallets..