Black onyx is a gemstone known for its deep black coloring. For those who love the dark look of onyx set off by gold, silver, or crystals, black onyx earrings may be the right accessory for you. Known for their role in cameo jewelry, black onyx can look beautiful even when not carved. Go against the grain and opt for a black onyx earrings in your jewelry collection to pair with darker-colored clothing or evening wear. The facets on black onyx jewelry catch light to give off dimension. Black onyx stud earrings are the ideal accessories for slowly working this gem into your wardrobe rotation.