In this informative article, we aim to demystify the concept of gold karats and shed light on its meaning and significance in the world of jewelry. If you've ever been curious about what those little numbers followed by "k" on your gold pieces signify, you've come to the right place.  What is Karat Gold? Karat Gold refers to a standardized industry unit of measurement regarding the percentages of metal alloy added to pure to either strengthen it, decrease gold caratage to reduce costs or change its color.