Is wearing gold along with silver advisable?

It depends on fashion. Nowadays fashion is again changing and people prefer using both metals to wear at the same time. I själva verket, you will find some jewelries or watches where both metals are used at the same time to produce some good look. So it all depends on you, if you like the combination of both metals you can wear. In some cases, people also believe on luck. About that, for example, gold will bring luck, or silver will not be lucky to wear. In that case, it all depends on your choice.
According to my opinion, there’s nothing better or worse when it comes to jewelry. It is a personal choice if you’re choosing both metals to wear at the same time. Although, many processes especially allow for mixing metals.
can you wear a gold pendant and a silver pendant together? Why not? It has been many years since mixing metals was frowned on. Go for it, and enjoy the beauty of mixed metals!