The Twelve Revelation GemStones strung with 5.5mm Cultured Pearls, approximately 20 inches long and findings are 14KGF or Sterling Silver. 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.