The Gold Gemstone Birthstone Stud Earring October Opal by Latelita London. These birthstone earrings feature two central opal gemstones for the month of October. With their rich tones, these cute stud earrings are set within a twisted rope design and dipped in 22kt gold. These earrings make for an ideal birthday gift. Opal is the birthstone for Libra, the month of October and the gemstone for the 14th anniversary of marriage. Length: 1cm, Width 0. 5cm. About The Designer: Since the house of Latelita was established in 2012, it has become known as a leading purveyor of statement jewellery. Eastern silhouettes fuse with contemporary European panache to create elegant pieces crafted from semi-precious gemstones and metals. To find out more about the designer please visit Latelita London.