how can i repair a crack in a polyresin spindle floor lamp?

Hi,Sorry if this is the wrong catagory.I couldn't find one really suitable.
Anyway,my floor lamp has been knocked over and has now got a crack in it.it is made from cream polyresin.is a spindle style lamp and the crack goes around the center like if it went much deeper the lamp would be completely broke in half.
Is there any way of fixing it or filling the gap?I have only just got the lamp so I'm desperate to try and repair it.
I would really apreciate any help anyone can give me with this.Thanks
Emma