Sterling silver, fine silver, 24 and 22K gold, Australian boulder opal, facted hessonite garnet, faceted vasuvianite.  This wonderful, chunky boulder opal with blues pinks and a wonderful red area, is prong set in a deep setting that I have bonded 24K gold to....it envokes the feel of a relic. This is an ancient Japanese technique called Keum-boo.  The entire length of the necklace is 19" with a 2" drop where the vasuvianite hangs.  The chain is adjustable shorter with a removeable "S" hook.  EXCHANGES ONLY PLEASE