What is a signet gem typically associated with?

A signet gem is typically associated with men's rings and cufflinks because historically, signet rings have been used as a form of personal identification and to seal documents. These rings often feature an engraved design or insignia that represents the owner's family crest, initials, or other meaningful symbols. This tradition dates back to ancient times, where signet rings were worn by men of status and were often used in formal and business contexts.

While some of the other options might touch upon jewelry forms or uses, they do not capture the specific historical and cultural significance of signet gems as effectively as the association with men's rings and cufflinks. Signet rings are distinct in their function and design, primarily tailored for male wearers in traditional contexts, which is why this answer accurately reflects their most common association.