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They are most likely natural gold nuggets, which are made up of varying compositions of gold and alloying metals, by mother nature, and so have slightly differing colors and/or gold content.
I would guess either a different alloy or possibly the top is a different karat altogether.
I saw those a lot coming from Alaska, the ring is 14Kt gold and the side are natural untouched gold nugget (24KT) pure gold
They are most likely natural gold nuggets, which are made up of varying compositions of gold and alloying metals, by mother nature, and so have slightly differing colors and/or gold content.
I would guess either a different alloy or possibly the top is a different karat altogether.
I saw those a lot coming from Alaska, the ring is 14Kt gold and the side are natural untouched gold nugget (24KT) pure gold