Trust tools
Hallmark reader
Read the tiny stamp inside a ring or on a clasp. Put it under the loupe, zoom in until the marks are clear, then tell us what you see.
Your photo never leaves this device. Nothing is uploaded.
Look closer
Place the stamp under the loupe
Photograph the inside of the ring or the clasp in good light, as close as your camera will focus.
Decode the marks
Separate marks with spaces. Arabic numerals (٧٥٠) and Chinese characters work too.
Or tap what you see
What the marks claim
Waiting for marks
Type or tap the marks you can see.
What a stamp does not prove
- That the piece is genuine: stamps are cheap to fake, and fake-stamped plated pieces are common in the Philippines.
- That the whole piece is that purity: the stamp may be on a clasp, jump ring or tag that was added later.
- Its weight, or that it's solid: hollow pieces and heavy solder change the gold content.
- Where it came from: “Saudi”, “Japan” and “Italian” describe a style and a usual fineness, not a certified origin.
A stamp is the maker's claim, not proof. Test it.
An acid, electronic or XRF test tells you what the metal really is. Bring the piece in for an appraisal, or estimate its worth first.