Silver weight
Metal is priced by weight, so the same design in a heavier gauge costs more before any labour is added. Ask for the weight per piece in grams on the quotation and compare like with like.
Silver price moves, so quotations usually carry a validity window; confirm the basis before you plan retail pricing.
Order volume and style count
Each style carries a setup cost in mold, CAD, sample and line time, so spreading a small quantity across many styles raises the unit price. Six styles at 12 pieces is the practical minimum.
Repeat orders on an existing style avoid setup cost and are usually the cheapest way to extend a range.
Plating and finishing
Rhodium, gold plating and oxidised finishes differ in material and process time. Thicker plating costs more but changes wear life, so specify the target instead of asking for good plating.
Hand polishing and hand setting add labour that machine finishing cannot replace on detailed pieces.
Packaging
Packaging is a per-unit cost that scales with quantity: a printed rigid box costs much less at 500 pieces than at 100. Include packaging in the same quotation as the jewelry so the landed cost is visible.
Freight is calculated on carton size and weight, which packaging directly affects; orders over $500 ship free, so consolidating packaging with the jewelry order usually pays.