The problem
Almost every jewellery site is a catalogue: a grid of thumbnails, a filter rail, a cart. That structure is borrowed from volume retail, where the goal is to show a visitor as many products as possible in as little time as possible.
A house does not sell that way. Nobody decides on a significant piece from a grid. The decision happens slowly, often over more than one conversation, and usually ends in a room rather than a checkout. A site built to accelerate browsing is working against the sale it is supposed to support.