Separate all of the pieces into categories. Whether real or costume, rings should be packed with rings and so on for organization sake.
Wrap and enclose each ring using small-scale bubble wrap and tape on each end. Seal all wrapped rings in a medium-sized resealable plastic bag.
For bracelets and necklaces, lay each piece flat on a small sheet of bubble wrap and roll tightly, securing the now tubular wrap with tape on open ends. Pack each wrapped piece inside of a sealed bag.
Place earrings directly into a small resealable plastic bag.
For all pieces, be sure to pack them inside a carry-on bag.