Diamond Education | Metals

Sylvie of Yellow Gold Engagement ring

Yellow Gold

A naturally occurring yellow metal. It is the most malleable of all metals, so it is usually combined with different alloys (composed of two or more elements) for added strength and durability. Even so, it is usually 70-75% pure. While 24k gold is pure gold, most of our engagement ring settings are sold in 18k; the lower the carat, the higher the percentage of other metals. Other alternatives are 14K and 10K. Learn more about yellow gold»

Sylvie of white gold engagement ring

White Gold

This metal is created by alloying yellow gold with palladium, nickel, zinc and/or silver. It is usually plated with rhodium (a member of the platinum family) to give it an intense white color and smooth, high polish appearance. Learn more about white gold»

Sylvie of Rose Gold engagement ring

Rose Gold

This metal is created by alloying copper to yellow gold, usually about 25%. The higher copper content added to the alloy, the darker or more red the metal becomes. Rose gold is used for specialized jewelry and is also known as pink or red gold. Learn more about rose gold»


Platinum is the most expensive precious metal. It is naturally white and is a very dense metal, which makes it both extremely durable, and very resistant to wear; when scratched, very little metal is lost. Platinum is a pure metal, and is naturally hypoallergenic. Learn more about platinum»