From the French for 'a thousand grains', the tiny beads of a milgrain accent can add complexity and detail to a Onyx design, as well as create a vintage or antique look. Black and gold make a beautiful and elegant combination. A black onyx ring is a perfect accessory for any outfit. Gem of hot summer nights and steamy red sunsets, ruby is the birthstone of July. Show the world the passions within you with a fiery ruby ring.