This Copper, bronze and silver combination necklace from Tigress Jewellery is a stand out, I have restocked multiple times from this supplier as their quality is superb.
The portion that goes behind your neck is made up of small pewter and bronze matte glass beads, threaded with many wood shapes in metallic colours of copper, bronze, silver and grey, from squares to rounds and organic shaped, all threaded through their middles so they sit right, and separated by tiny glass beads so they always stay in place. Finished off with grey resin elongated shapes.
This one is not adjustable and no closure, just pop over your head, overall approximate measurement is 87cm.