To restore lost or damaged gems and bring the brilliance back to a treasured piece. The replacement is matched and set at the bench, after you have seen the empty seat.
A missing stone changes how a piece wears and how it looks. We start with the setting in front of you, not with a catalog photo.
If the seat or the prongs are worn, that work is quoted with the replacement. See prong and tip repair when the setting itself is the problem.