Aurora: 4mm Black Australian Opal Ball Stud Post Earrings Solid 925 Sterling Silver;

Aurora: Bring to life the magic of the Northern Lights with our Aurora collection of Black Opal ball studs and cab posts! The vast array of glistening colors will leave you spellbound. A gorgeous addition to any wardrobe and an ideal gift as the birthstone for October. Mounted on solid 925 Sterling Silver posts, they're a gorgeous addition to any jewelry collection and make an ideal gift for those with an October birth date. For those that aren't aware of it, synthetic Opal is actually preferred to natural opal for jewelry items. Natural Opal is not particularly well-suited to being used in jewelry since it's a relatively soft gemstone, breaks easily and has to be protected from sunlight and many chemicals. Please note that the clutch or butterfly back design may vary depending on available supplies.