To label a jewelry 3D model, add structured metadata—such as material (e.g., 18k gold), dimensions (e.g., ring size 7), gemstone details (e.g., 0.5ct diamond), and design name—using 3D modeling or asset management software.
This metadata clarifies specs for different users: designers track versions, manufacturers follow production rules, and retailers list accurate online product info.
For beginners, use free tools like Blender to add custom properties, or save as a glTF file—this format preserves metadata when sharing.