Size 6.5mm 100% authentic! Comes with box, tag, dust bag and booklet Purchased from Saks From the Classic Chain Collection. John Hardy's signature chain of intricately woven sterling silver is set as a bracelet with a clasp displaying the brand's smooth Bedeg ripples in radiant 18k yellow gold 18k yellow gold Sterling silver Push clasp closure Imported Length, 7.5" Width, 0.26"