Precious metals require unique marking tools in many cases to preserve the quality of the finished item and to permanently identify it. Branding for the manufacturer is necessary to maintain connection between the item and the place of manufacture. Custom identification for positive, unique verification is a value added feature of direct part marking of jewelry.
Depending on the time available, quality specificaitons, and mark type there are a number of options for jewelry. Most precious metals are marked with metal stamps and type to deliver a permanent identifying mark or serial number. Logo dies and other branding marks are all easily made using stamping dies.