The October birthstone of tourmaline cubic zirconia crystal makes a pretty pink centrepiece for these pull through earrings. In the shape of hearts, the crystals measure 6mm high, 5mm wide and 2mm deep. Made from sterling silver, a 6cm chain with a 1mm curb height suspends the heart design from the ear, with a 1.7cm pin completing the earrings. Stamped with a 925 metal mark, they weigh 0.8 grams as a pair.