Vintage late 20th century black onyx stud earrings set in 925 sterling silver. The posts are stamped 925, confirming solid sterling silver. Each earring features a faceted natural black onyx stone with a deep glossy finish that adds timeless style to any look. Approx. stone size: around 10–11mm (see ruler photo). Pre-owned with light patina on the silver consistent with age. Stones are secure, posts are straight, and backs fit properly. Sterling silver is hypoallergenic and ideal for sensitive ears. Ships fast from a smoke-free home!