1.Dimensions shall have a tolerance margin within 5% and a maximum deviation of 1.5 mm, unless special requirements are specified. Measurements are cross-referenced against original design drafts.
2.All mechanical components (fasteners, clasps, etc.) shall match the approved CAD drawings exactly.
3.Structural strength is verified to eliminate risks of cracking, deformation or stone fallout.
4.All gemstones and metal components shall conform precisely to design specifications, including cut, shape, quantity, surface finishing and overall appearance. The hues of stones and metals must match approved color swatches.
1.All welding joints shall be fully finished with no visible seams.
2.Entire button surfaces shall be clean, free of blisters, stains and cracks.
3.Surface finishing (polishing, brushing, sandblasting, hammering, etc.) shall be identical to the confirmed sample.
4.Electroplating color must stay within acceptable tolerance ranges. Plating on ornaments shall feature uniform tone, free of bubbling, peeling, scratches or smudges.
5.All gemstones shall be well-polished without cracks or scratches; their cut and thickness shall meet defined standards.
6.Adhesive bonding shall be firm and durable, with no glue overflow or discoloration.