Composition of precious metal alloys
Overview of the three most common alloys found in gold jewellery
| 333 jewellery gold | 585 jewellery gold | 750 jewellery gold |
|---|---|---|
 |  |  |
| 33.3% gold content The remaining components are normally silver and/or copper. | 58.5% gold content The remaining components are normally silver and/or copper. | 75.0% gold content The remaining components are normally silver and/or copper. |
Overview of gold alloys
| Stamps | Gold content | Remarks |
|---|---|---|
| 33,3 % | Other components are mostly copper, silver, nickel. Depending on the respective percentages, yellow gold, red gold or white gold is formed. |
| 37,5 % | Other components are mostly copper, silver, nickel. Depending on the respective percentages, yellow gold, red gold or white gold is formed. |
| 58,5 % | Other components are mostly copper, silver, nickel, palladium. Depending on the respective percentages, yellow gold, red gold or white gold is formed. |
| 75 % | Other components are mostly copper, silver, nickel, palladium. Depending on the respective percentages, yellow gold, red gold or white gold is formed. |
| 90 % | |
| 91,6 % | |
| 98,6 % | Gold ducat |
| 99,9 % | Pure gold |
Other stamps and hallmarks
| Stamps | Meaning | Most common use |
|---|---|---|
| only silver-plated | Common on silver-plated silverware. |
| only silver-plated | Common on silver-plated silverware. |
| gold-plated/silver-plated | Common on jewellery and watches. The material only has a gold or silver-plated coating. |
| gold-plated | Common on jewellery and watches. The material only has a gold-plated coating. |
| gold-plated | Common on jewellery and watches. The material only has a gold-plated coating. |
| Brass | Common on cutlery. The material is only made from the brass alloy alpaca. |
Overview of silver alloys
| Stamps | Silver Content | Remarks |
|---|---|---|
| 80,0 % | |
| 83,0 % | |
| 83,5 % | |
| 90 % | |
| 92,5 % | Sterlingsilber |
| 93,5 % | |
| 99,9 % | Feinsilber |
| 99,9 % | Feinsilber |
| 93,75 % | |
| 87,53 % | |
| 81,25 % | |
| 75 % | |
| 65,0 % |
Overview of platinum alloys
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| Stempel | Platingehalt | Bemerkungen |
|---|---|---|
| 95,0 % | Häufigste Pt-Schmucklegierung |
| 75,0 % | |
| 58,5 % |
