Kinetic necklace - red coral and copper wire

This is a necklace I bought a few years ago on Etsy from BGLASSbcn (a very talented jewellery maker from Spain). It's beautifully made and I love it very much but it's not my style anymore. The pendant measures about 2 3/4" (70mm) tall and 0 25/32" (20 mm) wide. The gunmetal chain is 29.5 inches long (75 cm). The seller's description: "A necklace to play with, beautiful and natural with a rustic feel. Red coral threaded on a copper string slides up and down as you move the pendant." […] "The copper wire has been soldered with lead free tin solder and is treated with patina to give the copper a an attractive antique look."