A soft, shiny, yellow metal which occurs as nuggets or grains. 100% pure gold is too soft to be practical for use in jewellery so other metals (alloys) are added to make it harder wearing.
Sometimes these will maintain the yellow colour but they can also be used to change the colour of the gold, for example copper is added to make rose gold.
We use 18ct yellow, white and rose gold in our pieces which is the usual standard for fine jewellery, it is hallmarked with ‘750’, meaning that 75% is gold and 25% is a combination of other alloys.
Gold is a highly malleable metal, 1 gram can be beaten into a sheet large enough to cover 1 square meter and it does not oxidize in air or water, making it ideal for use in jewellery.