Length around is 18 inches. The back of the necklace is embellished by faceted smoky quartz rondelles, and the quartz is approximately 12 mm x 7 mm.
See some coordinating earrings here: http://www.etsy.com/listing/58563040/
And more jewelry in my shop here: http://aubepine.etsy.com/
I offer Paypal, credit cards, and Google Checkout as payment options. If you'd like to use Google Checkout, please select "Other" and I will email you an invoice.