It depends on whether u want the gold for investment or otherwise.. if its for investment, then its better to buy biscuits as ornaments lose their making charges when you go to sell and you have to pay making charges when you purchase it. Gold price varies every day...for example today 22k gold is arnd 97 QR per gram and 24k gold is 104QR per gram. you can buy gold biscuits (24k) at the Alfardan exchange near the main bus stand in the city.