Looks original... but big crack lowers value. Let's wait for someone familiar with the fakes of these, which I'm not.
I almost bought this one myself awhile back, original gorget and jeff clark is a very knowlegable seller/author of nsdap items. No worries here.
Nice original NSDAP gorget. It appears to have a scratch on the finish and is not cracked. The gorget and chain should have the same RZM manufacturer' code. As these do not match, it ia a married piece affecting the value. These are fairly common so much would depend on the price.
LIFE'S LOSERS NEVER LEARN FROM THE ERROR OF THEIR WAYS.