Salt. She is 18k, which runs deeper and yellower than the gold most people wear, gently domed across 3.3mm, and stamped inside from a life before this one.
We bought her because a high-karat band is the thing that makes everything beside it look more like itself. Wear her alone, stack her, thread her on a chain, or put her next to a stone ring to steady the hand. Resizable, so she finds the right finger.