Color: Silver and Black Material: Silver and Onyx Size: 13 (Japanese size) 10 (Japanese size) Large: Approximately 2.7 x 2.1 cm Stone (approximately 1.8 x 1.3 cm) Small: Approximately 2 x 1.3 cm Stone (approximately 0.5 x 0.8 cm) Color: Gray Color: Black Size: 13 (Japanese size) Size: 10 (Japanese size) This is a vintage silver and onyx ring. Onyx is a power stone, believed to ward off evil spirits. The larger one is suitable for the index or middle finger. The smaller one is suitable for the ring finger. You can also wear both at the same time.