kopie Romeinse gouden ring
Kopie Romeinse ring, slangen met saffieren.
Afmeting: Ringmaat 20 mm.
Periode: Laat.
GOLD...
...the world's most prized metal, gold has graced royalty and decorated the best athletes.
Gold is workable due to its malleability, and beautiful due to its colour and lustre.
Pure 24K gold is considered to be too soft for jewellery, however the Chinese culture prefers gold in its pure form.
Karatage is the measure of the fineness of gold.
Pure gold is alloyed, or mixed with other metals for strength, wearability, and/or colour.
|
Fine Gold Content |
North American Marking |
European Marking | Country |
|---|---|---|---|
| 100% | 24 krt. | 999 | China |
| 91.6% | 22 krt. | 916 | India |
| 87.5% | 21 krt. | 875 | Middle East |
| 75.0% | 18 krt. | 750 | Belgium |
| 58.3% | 14 krt. | 585 | Netherlands |
| 41.6% | 10 krt. | 416 | Canada, U.S. |
| 37.5% | 9 krt. | 375 | U.K. |
| 33.3% | 8 krt. | 333 | Germany |
|
Silver
Content | Kwality |
European Marking | Country |
| 92.5% | High | 925 | Europe |
| 83.5% | Low | 835 | Europe |
The Colours of Gold:(How alloys affect colour)
| Colour | Elements |
|---|---|
| Yellow Gold | Gold, Copper, Silver |
| White Gold | Gold, Nickel, Zinc, Copper |
| Green Gold | Gold, Silver, Copper, Zinc |
| Pink Gold | Gold, Copper |
Reactions to Gold:
Some people may experience reactions to nickel or any of the other alloys in karat gold.
This problem may be alleviated by choosing jewellery with a higher gold karatage
(the greater the percentage of pure gold the less percentage of alloys used).
Care & Cleaning of Gold:
When storing gold jewellery for safekeeping, separate the items to prevent any chance of scratching.
To clean jewellery use a cleaning solution, or ultrasonic machine.
Avoid soap and soapy water since it can create a film. Dry and polish with a soft cloth.
Terug