Don't forget karat.
Karat is a gold measurement used in Europe and USA, ......but in the United Kingdom it is spelt Carat the same way as the diamond weight measurement. We have 9 carat gold and 18 carat gold but no 10 carat or 14 carat gold here. In the rest of Europe 14 karat gold in popular and in Germany they have 8 karat gold.