This walnut bracelet has been around for more than two years, and it's covered with pulp, but it's not very nice. What's wrong with it?
This string is not made of walnuts, but of wild peach stones. The darkening of color is mainly due to the faster early stage, especially if you play with sweaty hands or brush some oil, it will be easier to color. If you play with dry hands, the coloring will be slower, but the patina will be fast, and it will be much slower to deepen the color after patina.