Are you searching for a special and different gift for yourself or for the man in your life? A Onyx men's ring makes for a distinct and stylish statement about the man who wears it. Black and gold make a beautiful and elegant combination. A black onyx ring is a perfect accessory for any outfit. Sapphire is the birthstone of September, and one of the most popular gemstones on the jewelry scene today. The deep blue color of a sapphire ring is just right for an evening out.