We love a strong and elegant style. Like this Rectangle-Filigree Black Onyx Ring, classic, cool, and powerful. This is a signet ring in all its sparkling cool glory. The birthstone of Leo, a stone that symbolizes peace, harmony, love, and luck. A polished rectangular black onyx, set in a solid sterling setting, cool against this rich midnight stone. This statement ring is a stand-out, the perfect look for every occasion.