ISIS gold coins were sold and minted in Turkey until 2015 when USA cracked down on production. As well they were minted in Syria. Your coins are very likely from Syria. These were brought by some families from Syria into Europe. They seem to be acquirable nowadays in Bosnia and Turkey too. During this Caliphate regime they were sold near Turkish-Syrian border in exchange for cash because they needed to use some for purchasing oil and other supplies. I would say 1 dinar would be worth 400 dollars, 5 dinar would be around 1700 dollars. Given that they are genuine. I have seen these coins from time to time but was always unsure if they were replicas or not. I mean they were gold coins for sure, but not sure if someone made them at home. I would have to pay a lot of attention to details and have several from different sources to compare. Selling these on USA platforms would be tricky because everything gets labeled under terrorism financing easy.
I do have for example almost all Third Reich coins and banknotes and I have no prejudice towards them. They are part of history, and should be viewed as such.