What does OTC on a gold ring mean?

OTC on a gold ring typically stands for "Over the Counter," which refers to a type of transaction where the ring is sold directly to a consumer rather than through a retail store or auction. It can also indicate that the gold has been tested and verified, often denoting the quality or karat of the gold. In some contexts, OTC may also refer to specific trading mechanisms in the financial markets, but in relation to jewelry, it mainly pertains to the sales method.