Bracelets take more knocks than any other piece, so they are worth a thought before you buy: softer stones such as fluorite, calcite and moonstone mark more easily than agate, jasper or quartz. Beaded bracelets are strung on elastic, so they slip on without a clasp; silver bracelets and bangles use 925 throughout, including the fastening. Take them off before swimming, as chlorine and salt water dull both the silver and a polished stone. Hand-picked in St Andrews and posted UK-wide.