Opal and pink tourmaline are both October birthstones. Whether you prefer the fiery sparkle of opal or the feminine pale pink of Octobers tourmaline birthstone, youll find the perfect October birthstone gift at Eves Addiction. Is opal bad luck? No way! This old myth has been debunked, and anyone can shine in opal birthstone jewelry, whether you have an October birthday or not. The October birthstones are both so versatile that they make great gifts for everyday wear.