Yup! But that said, our alloys will likely never show noticeable tarnish because it happens very slowly. This is true of gold alloys used by all jewelers, not just our gold.
Why? Pure gold (24k) does not tarnish or react with the air. But 24k gold isn’t used in jewelry applications due to its softness and malleability. To make it more suitable for jewelry applications, gold alloys are created with a mixture of other metals (like copper, silver, and others) which are added for color, durability, and/or desired physical or chemical performance. These other reactive metals are what causes tarnish in gold alloys; however, gold alloys will tarnish more slowly than brass, bronze, sterling silver, or copper. Gold alloys with higher gold content will tarnish slower than alloys with lower gold content, but again, our alloys will likely never show noticeable tarnish because it happens very slowly no matter the alloy.
Why? Pure gold (24k) does not tarnish or react with the air. But 24k gold isn’t used in jewelry applications due to its softness and malleability. To make it more suitable for jewelry applications, gold alloys are created with a mixture of other metals (like copper, silver, and others) which are added for color, durability, and/or desired physical or chemical performance. These other reactive metals are what causes tarnish in gold alloys; however, gold alloys will tarnish more slowly than brass, bronze, sterling silver, or copper. Gold alloys with higher gold content will tarnish slower than alloys with lower gold content, but again, our alloys will likely never show noticeable tarnish because it happens very slowly no matter the alloy.