I want to buy a jewelled duvet cover or bedspread when we go to Goa does anyone know a good place to get one?
You can buy jewelled bedspreads almost anywhere. Best bargains would be Anjuna Market (every Wednesday), Saturday Night Market. Both markets are worth a visit especially if this will be your first visit to Goa. You need to bargain hard to get a good price but that's part of the holiday.
As for duvet covers - The only ones I have seen are the cotton ones like you buy in the uk. You could of course buy some material and have your bedspread made into a duvet. Would cost next to nothing to have this done here. Enjoy your holiday