This 3-stack, hand-hammered bangle bracelet set includes (1) 4mm-wide black and white channel bangle featuring multiple 1.0 and 1.5mm diamonds, (1) 5mm silver bangle, and (1) 8mm silver bangle. Our bangle bracelet sets come in sizes small (2.1/2" diameter), medium (2.3/4"), or large (3"). A size medium will fit most wrists. Materials: Sterling silver (.925) oxidized sterling silver, and lab-created diamonds. All materials are hypoallergenic. We hand carved and oxidized the channel where the diamonds are set. The oxidation is protected within the channel and is therefore better preserved over time. We love how the diamonds really pop against the oxidized channel. This bangle bracelet set was designed in San Francisco and is handmade in our Upstate New York production studio.