A 4-millimeter solid 10K yellow gold band ring is fine jewelry at its most fundamental: the width is exactly right - wider than a thin dainty band, narrower than a statement piece - and the full polish reflects warm gold light with the consistency that only solid precious metal produces. This is a ring that does not need a reason to be worn because it provides its own: it looks exactly right in any context, with any other jewelry, on any occasion. Non-sizeable, so careful measurement before ordering. A solid gold band ring at this width is a foundational piece that belongs in every fine jewelry collection - the piece that anchors a stack or stands alone with complete authority.