Abstract: The present invention relates to a clasp for jewelry comprising a first hollow closure element which comprises a groove having an insertion aperture and extending at least partially around the circumference of the first closure element. The groove is configured to receive a fastening member of a second closure element which is insertable through the insertion aperture into the groove of the first closure element and whose cross-section is larger than the width of the groove. The first closure element comprises a wall at each of the two opposite end portions which ends the hollow first closure element, wherein the groove extends into the respective wall of the end portions and ends there.