that's actually a really good idea. But I think you would have to know the jeweller for a long time or they won't really let you borrow.
yes I think so.. but theres another idea that u can keep ur old real gold jewellery (same weight) with the jeweller & borrow a new set instead, or u can go to ur family jeweller or can take help of ur aunts & cousins etc & go to their jewellers.