PRECIOUS METALS ALLOYS
What is Sterling Silver?
Sterling silver is an alloy of 92,5% pure silver and 7,5% copper. It's due to this reason that it's commonly referred to as "925 silver". It's harder and more durable than pure silver, however, due to the addition of copper, it's prone to tarnish.
What is 9K Gold?
The purity of gold is determined in karats. They range from the purest, 24k, to the lowest recognized gold karat, which is 8k. For example, in the United States, the minimum standard for gold before 2018 was 10k, however, there were countries that allowed marketing 9k as gold such as Portugal, France, Austria, Ireland and the United Kingdom. Other countries like Denmark and Greece allowed 8k.
|8k||333||Percentage of pure gold = 33.3%|
|9k||375||Percentage of pure gold = 37.5%|
|10k||417||Percentage of pure gold = 41.7%|
|14k||585||Percentage of pure gold = 58.5%|
|18k||750||Percentage of pure gold = 75.0%|
|22k||916||Percentage of pure gold = 91.6%|
|24k||999||Percentage of pure gold = 99.9%|