What does unmarked gold mean?

If its truly gold, but lacks such a stamp, its “unmarked gold” and the buyer may need to authenticate, and determine the purity level, by some other means.

What do Jewelers marks mean?

D. Updated February 12, 2020. Jewelry made from precious metals is often stamped with a mark to indicate the chemical composition of the metal. A quality mark contains information about metal content that appears on an article. It is usually stamped or inscribed on the piece.

Can real gold not be marked?

In short, no, a stamp is not a guarantee that a piece is really gold. For instance, gold-plated jewelry can have karat stamps, but they will indicate the purity of the gold plating, not of the entire piece.