Vintage 18 kt. yellow gold ring set with onyx 14 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: 15 mm Min. width: 3.5 mm Express and secure shipping