Frequently Asked Questions | Goldanalytix
Here you find answers to the most frequently asked questions on all topics related to precious metal testing. The questions and answers are neatly arranged according to key topics - so you can find what you are looking for very quickly.
For diamonds/gemstones, carat is a measure of weight. Here, one carat corresponds exactly to 0.2 grammes. In the precious metal trade, on the other hand, the gold content of bars and coins is indicated as the fineness or fine gold content, usually in the form of an embossing. The CaratScreenPen measures the carat number of gold within seconds. Pure gold bars are stamped 999.9, also known as "four nine fine".
Below you will find an overview of the carat specifications for gold:
8 Karat:
333
Gold 33.3 %
9 Karat:
375
Gold 37.5 %
10 Karat:
417
Gold 41.7 %
14 Karat:
585
Gold 58.5 %
18 Karat:
750
Gold 75 %
20 Karat:
833
Gold 83.3 %
21 Karat:
875
Gold 87.5 %
22 Karat:
916,66
Gold 91.666 %
24 Karat:
999
Gold 99.9 %