Tree Branch Ring - io-01-215 Mat Rust GrayDESCRIPTION iolom Collection. With the theme of harmony and fusion between Nature and Artifact, this ring expresses the texture of a tree's skin or natural tree trunk. A special treatment gives it a gray based color, and as you wear it more and more, the surface finish gradually comes off, revealing the original Silver 950. *Due to the nature of this product, which is completely handmade, there are individual differences. We appreciate your