925 sterling silver is a relatively soft metal. Chunky jewelry made of silver, like most Undefined jewelry product, are easily exposed to collisions with other surfaces which creates dents and small wounds. Over time, these will slide into each other and the surface and the underside of the jewelry to become "softer" and the cuts become less visible. Scratches and small bulks are not considered a defect, but just a sign of normal wear and tear. For blackened 925 sterling silver, the surface treatment eventually wears away in places, revealing the gleam of untreated silver.