Two repairs described with the same words can require very different work. That is why responsible jewellery repair pricing usually starts with the actual piece.
Main cost factors
Metal, construction, access, wear, stone handling, replacement materials, finishing and the amount of skilled bench time can all change a quotation. Hidden wear is particularly important because a repair should not knowingly leave a neighbouring area unsafe.
Use estimates appropriately
A photograph can sometimes support a useful range, but a firm quotation may need physical inspection. Treat unusually precise prices offered without enough information with appropriate caution.