Scan quality
Hallmarks: tiny marks, valuable clues
Where to find the marks on a piece of jewellery, how to photograph them for a scan, and why even a convincing stamp cannot tell you what it is worth.
Marcel Buth4 min read
Articles
Scan quality
Best practice: one object per scan
One object per scan, several photos of that object, and why mixing items goes wrong.
Marcel Buth4 min read
Best practice
Why context matters: what to write in your scan description
Weight, provenance and what you already know: the details a photo cannot carry.
Marcel Buth2 min read
Scan quality
Use reference objects to get better results
A coin, a scale and a ruler will do more for your results than any camera upgrade.
Marcel Buth2 min read
Best practice
Why AI results vary, and how to get a steadier answer
Why two scans can differ, and why two agreeing scans mean more than one confident one.
Marcel Buth2 min read
Scan quality
Testing gold the right way: six tips for a better scan
Six things that decide how much evidence your photo gives the analysis.
Marcel Buth2 min read
Scan quality
How to get more accurate results from IsItGOLD?
Light, scale, weight and readable hallmarks: the inputs that change a scan result most.
Marcel Buth2 min read