I have even worn a sari with hijab. It can look very elegant if done properly. Your ears cannot be showing, or it does not fulfill the requirements of hijab, so forget the earrings and focus on wearing a beautiful pendant necklace, bangles, and rings. A long heavy pendant looks very nice with hijab. If you have a heavier dupatta (too heavy looks bridal) that you want to wear on your head, you can wear a smaller rectangular scarf under it and pin it so that your neck is covered. The heavier dupatta can be worn on top, similar to the Jugni look above.
Otherwise, have a simple scarf made in the same color of the clothing that you are wearing, maybe edged in a simple variation of the kaam on your clothing on the edge, and wear your dupatta as you normally would.
Hope this helps.