Bendable jewelry wire
Cut 4 inches of wire and thread a jump ring on to it.
Wrap the wire around one side of the crystal.
Wrap the wire around the other end of the crystal. The jump ring will be in the middle. Cut off any ends of the wire that remain. You can also secure the crystal to the wire with a little bit of Crazy Glue.
Cut a 14 inch chain and thread through the jump ring.
Attach the lobster clasp with a jump ring and add a jump ring to the other end of the necklace using the jewelry pliers.