Purchasing physical Gold in Ireland.

Just wondering if I can purchase physical gold in Ireland and can I import physical gold in to Ireland?

Do I have to pay any sort of tax on my purchase?

If I purchase a one ounce gold coin and the spot price is $1500 per ounce how much should I expect to pay for this coin?

What karat gold is usually found in gold coins and is the spot price of gold based on 24 karat?

Thanks