Gold is one of the most popular precious metals. It resists scratches and keeps its sparkle better than platinum and silver, but is soft enough for intricate designs. 18-19 karat gold is the gold standard among gold alloys, achieving the best combination of colour and durability. If you are allergic, check to ensure that the gold alloy you are considering does not contain nickel. There are different colours of gold – white, yellow and rose being most well-known – that suit different skin tones and different stones.