The classic signet ring is reimagined in a modern oval silhouette—reminiscent of a star-filled sky—with a scattering of shimmering lab-grown diamonds for otherworldly sparkle. 10k yellow gold lab-grown diamonds glimmer in an oval frame certified lab-grown diamonds; f color/ vs2 clarity includes certification card 1/3 ct. T. W. Of lab-grown diamonds from the stellar allure collection exclusive to zales