Before you start moving things around willy-nilly, think about what kind of large loop shape you can make with the pieces available.
Combine the bracelets into the shape of a large plus sign (+).
The three blank tiles and one empty square go in the four corners when the necklace is complete.
US Version
Even the shortest solution takes quite a few moves, so keep at it, and don't give up!
UK Version
Even the shortest solution takes quite a few moves, so keep at it and don't give up!
US Version
Try sketching out where each type of tile will go when the necklace is complete. Once you figure this out, it shouldn't take too long to maneuver the tiles into place.
UK Version
Try using the Memo Function to sketch out where each type of tile will go when the necklace is complete. Once you've worked that out, it shouldn't take you too long to manoeuvre the tiles into place.