Of course it's possible to buy jewellery from Accessorize, in the same way it's possible to buy bags from there. But the OP specifically wants to buy a decent pair of earrings and has money allocated to do so.
I'm not into handbags and would probably only spend up to 25 on a bag....that doesn't mean I don't understand that some people will want to spend multiples more on a bag they might keep for 10 years +