Necklace is adjustable from 16.5 - 17.5" Sterling silver chain, beads and clasp.These Gemstones are the same as the bracelet,Adventurine for Well Being, Amber for Healing and Energy, Agate for Energy, Jade for Wisdom, Rhodonite for Self Affirmation and Rhodochrosite for Love Drawing. As I stated before with the bracelet, "I have no idea if there is any truth to their "Healing Powers", I just Love the beads".