Once upon a time, a man’s jewellery box was a pretty lonely place. The odd ring might’ve resided in there, maybe a crucifix or a St Christopher on a chain, the acceptable necklaces for men, and there would usually be a watch of some variety, but that would basically be it. Jewellery was the preserve of women (and magpies) and real men avoided it. Let’s face it, some men didn’t even bother to wear a wedding ring, But times really do change, and these days you only have to pick up a celebrity magazine to realise that men’s jewellery is not only on trend and totally desirable, but is big…