Rough Quartz Crystal on Leather Cord No. 10A rough clear crystal quartz pendant hangs from thin, naturally dyed leather cord for this men's cool, one of a kind gemstone necklace. Two large sterling silver beads flank the crystal pendant and it's secured with sterling silver end caps and clasp. In your choice of length* and black or brown leather. crystal measures 2. 6cm long leather is 2mm thick *Please consider your length carefully. Once the clasp has been secured, it cannot be resized.