I'm not so sure that the normal rules of bullion value apply here. Unless I misread the Royal Mint website, only 2012 of these soverigns have been struck, making them considerbly rarer than any of the other designs in recent years. That's bound to lead to a premium, rather like the 1989 sovereign. However, the RM price is £450, whilst the bullion value is around £250-260, so the question is whether you will see any 'investment' value on the £450 paid. Personally, I doubt it over the medium term of say 10-20 years. After that maybe, but an awful lot depends on what happens to gold prices.  I think you have mis read there are 750,000 for bullion.2012 special boxed with COA etc.Plus 5500 proof