Wedding ring manufactory in Pforzheim: wedding rings, marriage rings and engagement rings made from recycled precious metals – 100% manufactured in Germany.
August Gerstner Ringfabrik GmbH & Co. KG
Pforzheim (Calwer Straße 131)New on Amplifa
About the Wedding Ring Manufactory August Gerstner
August Gerstner Ringfabrik GmbH & Co. KG was founded in 1862 by Max Gerstner in Pforzheim and is today family-owned in its sixth generation. The company manufactures wedding rings, marriage rings and engagement rings including solitaire rings with diamond settings. The entire value chain – from in-house alloy production through blank manufacturing to assembly, design and stone setting – takes place at the single site on Calwer Straße in Pforzheim. The rings are machined on modern CNC machines, refined by laser printing/engraving and subjected to a hardening treatment; highly qualified goldsmiths carry out the handcrafted finishing. Only recycled precious metals (gold, palladium, platinum) from RJC-certified refineries and conflict-free diamonds under the Kimberley Process are used. Marketing is exclusively via jeweller partners, worldwide and in multiple languages.
- Site
- Pforzheim
- Processes
- Wedding ring manufacturing (goldsmith work), In-house alloy production (precious metal alloys made in-house), CNC machining, Hardening of the rings, Diamond engraving (diamond-tip engraving), Laser printing (laser marking/engraving), Stone setting / setting of diamonds and gemstones, Individual wedding ring configuration (online configurator)
- Materials
- Gold (18 carat, gold colours such as hazelnut, ivory), Platinum, Silver, Palladium, Rhodium, Recycled gold (refining from scrap gold), Diamonds (conflict-free, Kimberley Process), Gold (18 carat)
- Certificates
- Responsible Jewellery Council (RJC) Code of Practices, RJC Code of Practices (Responsible Jewellery Council)
- Founded
- 1862
- Employees
- approx. 120
- Industries
- Jewellery manufacturing / wedding rings and marriage rings, Engagement rings / solitaire rings, Specialist retail (jewellers), Engagement rings/solitaire rings, Goods distribution via jeweller specialist retail
- 01
In-house alloy production from recycled precious metals
- 02
CNC machining of ring blanks
- 03
Hardening of the rings (heat treatment)
- 04
Diamond engraving / laser-print surface finishing
- 05
Stone setting (diamonds, gemstones) by goldsmiths
- 06
Inner engraving with AG mark and wedding ring certificate
- 07
Distribution via jeweller partners
Materials and Processes
Gold (18 carat)
Main material for wedding rings, including proprietary gold colours such as hazelnut and ivory.
Recycled gold (refining from scrap gold)
Environmentally friendly fine gold recovered from scrap gold and electronics with a low CO₂ footprint.
Platinum
Precious metal for particularly value-retaining wedding rings.
Silver
Listed in the RJC certificate as a processed material.
Palladium
Alloying partner for white gold and proprietary ring alloys.
Rhodium
Listed in the RJC certificate as a processed material.
Diamonds (conflict-free, Kimberley Process)
For solitaire and engagement rings as well as stone settings to customer specification.
Site
Pforzheim
DEHeadquarters, administration and complete manufacturing (wedding ring manufactory)
- Lot size
- Individual one-off production through to series production
- Materials
- Gold (18 carat), recycled gold, platinum, palladium, silver, rhodium, diamonds
- CNC machines (latest generation)
- Laser printers with fine dust filters
- Photovoltaic systems (2 systems, approx. 26 kWp)
Rings and Jewellery
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Wedding ring manufacturing (goldsmith work)Assembly | – | – | – | – | Gold, Palladium, Platinum, Silver, Diamonds |
| In-house alloy production (precious metal alloys made in-house)Casting | – | – | – | – | Gold, Palladium, Platinum, Recycled gold |
| CNC machiningMachining | – | – | – | – | Gold, Platinum, Silver |
| Hardening of the ringsHeat treatment | – | – | – | – | Gold alloys |
| Diamond engraving (diamond-tip engraving)Surface | – | – | – | – | Gold alloys |
| Laser printing (laser marking/engraving)Surface | – | – | – | – | – |
| Stone setting / setting of diamonds and gemstonesAssembly | – | – | – | – | Diamonds, Gemstones |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC machines (latest generation) | – | – | – | – | Pforzheim |
| Laser printers with fine dust filters | – | – | – | – | Pforzheim |
Additional services
Quality and Certification
All metal alloys are produced in-house, which guarantees an above-average surface hardness of the rings. As a certified member of the Responsible Jewellery Council (RJC), the company subjects itself to an external audit according to the RJC Code of Practices on a three-year cycle.
| Evidence | Pforzheim |
|---|---|
| RJC Code of Practices (Responsible Jewellery Council) |