Vintage 18 kt. yellow gold ring set with onyx 12 x 10 mm Designed in a classic signet style, featuring a smooth band and a round polished black onyx centerpiece. The deep black stone contrasts beautifully with the warm tone of yellow gold, creating a bold and elegant look. A timeless piece suitable for everyday wear or special occasions Hallmark: 750 Max. width: 14 mm Min. width: 3 mm Express and secure shipping