Beautiful onyx and aventurine stretch bracelet.  Four rows of round black onyx beads (approx. 6 mm) connect with rectangular black onyx stations (approx. 21.5x4 mm).  Sterling silver station hides a magnet that hugs four interchangeable carved dyed aventurine "roses".  Tiny notches on the sides of each "rose" fit into the cutouts in the round station so that when you turn the rose clockwise, it locks into place.

"Rose" colors:  purple, coral, blue and green.