Looking for a November birthday gift? You can't go wrong with these easy-to-wear triangular studs displaying the November birthstone. Made from sterling silver stamped with a 925 metal mark, they measure 0.6cm x 0.7cm x 0.3cm, with a citrine cubic zirconia crystal centre. Weighing 1.4 grams as a pair, they have butterfly back fastenings to secure them in place.