The Twelve Revelation GemStones strung with Swarovski (Austrian) Crystal and/or beads made of Sterling Silver or 14KGF. The necklace is approximately 20 inches and the clasp shown is 14KGF. As with other Revelation Bead jewelry, the gem stones are strung on a nylon coated, multi-strand stainless steel SoftFlex or TigerTail cable. As always, you have a choice of Jasper types as well as choice of Sterling Silver, 14KGF, or Magnetic Clasp. Each piece of jewelry is unique because of the normal variance in the color and shading of the gemstones. Gem stones that are individually cut are naturally slightly different in shape and size.