Average Hourly Cost: The average hourly cost for marble countertop polishing by a marble contractor in 2023 is around $75 - $125 per hour.

Cost Breakdown: The cost breakdown for marble countertop polishing includes the cost of materials, labor, and any additional services such as polishing, sealing, and buffing. Materials typically cost around $10 - $20 per square foot, labor costs around $30 - $50 per hour, and additional services can range from $25 - $50 per hour.

Factors that May Affect Cost: There are several factors that can affect the cost of marble countertop polishing, including the type and quality of the accessory, the complexity of the job, and the location and service provider. For example, a more complex job may require specialized tools and techniques, and higher quality materials may cost more. Additionally, the location and service provider can also affect the cost, as prices may vary depending on the area and the contractor's experience and reputation.