1. Production capabilities
Check which processes the manufacturer runs in-house. Full in-house production — design, casting, CNC, laser, finishing, plating — means better control of quality and deadlines.
2. Materials and quality
Ask about materials (925 silver, gold, titanium, brass) and their origin. Certified raw materials are the basis of a premium brand.
3. Experience and capacity
Staff tenure and production capacity say more than brochures. Flexibility from short runs to serial production is key.