You're paying so much for fine jewelry; shouldn't it last without needing repairs? That's not quite true. Fine jewelry should last a long time, but like any solid object, it will occasionally need some form of fixing over the years.
It Is Meant to Last, but It Can Show Signs of Wear
Fine jewelry is called "fine" because of the materials used and the craftsmanship that went into making the piece. The high cost of fine jewelry is due partly to the more valuable nature of the metals and gems involved, and partly because they are constructed so that they won't disintegrate easily.