Prepare Your Materials: Open some 18 gauge jump rings and keep some closed. Similarly, prepare the 20 gauge rings.
Start the Chain: Attach six closed small rings to one large ring and close. Double this large ring by threading another large ring through the six small rings.
Expand the Chain: Separate the small rings into groups of two. Add another large ring, threading through two small rings, and add six new small rings before closing.
Repeat the Process: Continue adding large rings, each time capturing two of the previous step's small rings and adding six new small rings before closing.
Add the Crystals: Attach a double strand clasp to two lengths of beading wire. Alternate adding 4mm and 6mm bicone crystals, threading through the chain's small rings.
Finalize the Bracelet: Finish by attaching the clasp to the other end, securing it with crimp beads.