Six treatments are sold under the word "polishing". They are not interchangeable - each works on a different depth of the stone, and each has a problem it cannot solve.
Start with the problem, not the product. Dull but flat floors need crystallization or powder polishing. Uneven or scratched floors need diamond grinding. Stained kitchen marble needs cleaning, then a stain sealer. Open joints need epoxy before any polish.
The correct order is repair, grind, polish, protect. Applying a sealer over a scratched floor, or crystallizing over open joints, wastes the money spent on both. This is the single most common mistake we are called to correct.
Area measured on site, the finish you will actually get, whether furniture is moved, dust control, drying time before handover, and the rate in writing. If a quote arrives without an inspection, the number is a guess.