Because expressing yourself through fashion is really about being whoever you want to be on any given day, you shouldn’t be inhibited or forced inside a box just because your accessories serve one purpose and one purpose alone. No, no, no—calling all Libras, Scorpios, and any gal looking to cultivate a chameleon aesthetic: might we recommend adorning yourself in an opal this month? Not only are opals the official birthstone of October, but with their ability to embody clear, white, gray, red, orange, yellow, green, blue, magenta, rose, pink, slate, olive, brown, and the ultra-rare black (phew!), this gem is sure to accentuate any and all of your varying yet completely permissible moods. Scroll below to be dazzled by the opal pieces we’re coveting on eBay right this minute.