Megan Auman US designer and metalsmith one of a kind bold necklaces from her website: megan auman.com “Every stone in this unique collection of black and white statement statement jewelry is truly one of a kind.  Naturally occurring patterns mean that no two stones will ever be the same.  Handmade in the US. Each one is as unique as you are. Wear one of a kind, be one of a kind. “ dendritic agate stone measures 2” x 2” approximately see image for actual measurements, steel chain approximately 18” but can be clasped shorter.