October-born ladies will love these sterling silver stud earrings - especially as they contain a tourmaline CZ crystal triangle which is the birthstone for October! What's more, you'll win extra style points for working the geometric trend! They come with butterfly backs to keep them in place. Weighing 1.3 grams, you can party the night away in comfort. These studs measure a dainty 0.6 x 0.7 x 0.3cm - perfect for ladies who prefer a minimal jewellery look.