Why Choose Yellow Gold? Yellow gold is a traditional choice, and can give a certain vintage-look to most engagement ring designs. The warm, yellow tone is eye-catching, made up of 75% fine gold and 25% other metal alloys, used for strengthening. For recreating antique engagement rings, yellow gold can be a great way to enhance character, and works as a beautiful colour contrast for coloured diamond and sapphire engagement rings. For contemporary yellow gold rings, a solitaire diamond ring design can look sleek, minimalist and modern. Yellow gold is marginally less costly than platinum, and is at the same price point as rose gold and white gold.