Hallmarks help confirm metal purity and can protect you from mislabeling. They are not a full guarantee, but they are a strong first check.
At a glance
- Best for: verifying metal claims in-store or resale
- What it includes: common stamps like 14K, 18K, 950 PT
- Watch for: worn or incomplete stamps on vintage rings
How to use it
Check the inside of the shank for stamps and compare them to the seller description. If the stamp is missing or illegible, ask for testing or certification.
For more on how metal choice affects durability, see the Ring Metals guide.
