Since designing with both brands Haati Chai and Amarilo, I have worked with a LOT of different metals throughout the years. You name it, anywhere from sterling silver or overlay, to the other end of the spectrum of 22kt gold or titanium. In this post, I want to go into more detail on Gold!
The gold-quality system consists of 24 parts, or karats. Pure gold is called 24 karat (marked as 24k, 24kt, or 999). This means that 24 out of 24 parts of the metal are pure gold: 99.9% pure gold. You can alter the karatage of gold by adding other metals.
Currently the Amarilo collection is primary made of 10 kt gold or 14 kt gold. In my past experience working with both karatage, these options are the epitome of the strength and soft gold tones in everyday fine. Additionally, the Haati Chai collection is made primarily in 18kt gold or 22kt gold, which boasts a deeper gold hue with solid pendants and chunky signets.
10kt gold is made of 10 parts gold and 14 parts other metals, such as silver. 10kt gold has a slightly more pale tone than 14 kt gold, but isn't noticeable to the naked eye. 10kt gold is also much more durable than gold with higher karatage, and the least likely gold to experience any scratching since it carries a lower gold amount. If you are sensitive to nickel, 10kt gold is not for you.
14kt gold is 14 parts gold, and 10 parts other metals. 14kt gold has a more yellow tone than 10kt gold, but not as yellow as 24Kt gold. 14kt gold is a very common gold karatage, because it is more affordable and durable than higher karats.
18kt gold carries 75% of the gold content with 3 parts gold, and 1 part alloy. This means it is less likely to tarnish, but still very durable for pieces like engagement rings. 18kt gold has a slightly deeper gold tone that 14kt gold or 10kt gold, but still stronger than a higher karatage such as 22kt gold.