A stone protected by the ocean.  With a 4mm tube set stone (cubic zirconia shown).  14kt gold fill and sterling silver. Total width in the front is 9/16" (15mm).  Band width 1/8" (3mm). Each of our pieces is cut, bent, formed and hammered by hand and with love in our studio in San Rafael, CA. We use sterling silver and 14k gold filled, both of which are nickel free. Any of our pieces can be made in solid 14k by request.