The SKU tells you what Enri Mars was thinking: Diagenesi. The geological transformation of loose sediment into solid rock through heat, pressure, and deep time. In his Imola workshop, he translates that process into sterling silver 925 - building a ring whose peaked, asymmetric profile rises from a smooth inner band into a cratered summit of oxidized metal. The surface carries vertical striations down its flanks like exposed rock strata, each groove hand-worked during the lost-wax casting and finishing process. Run a finger along the side and you feel the ridges - compressed layers made tactile, cool and rough under the skin.
Near the crown, a vein of gold plating breaks through the darkened silver. It sits in a shallow crater, matte and textured, appearing less as decoration than as something the erosion uncovered - a mineral deposit that was always there, waiting for the surface to wear away and reveal it. This is the Kintsugi principle inverted: not gold filling a crack, but gold emerging from depth. The oxidized crevices around it darken to near-black, amplifying the warmth of the gold against the cooled silver mass. Each ring develops its own pattern of oxidation and wear. The striations lighten where your fingers touch most. The gold holds its warmth.