What is the Best Sealer for Natural Stone

This application was Natural Stone - new construction. The surface was basically destroyed. National Sealing was contracted to Restore this Natural Stone with our durable Coating Process. Instead of applying a Sealer for this Natural Stone, our 3 part coating was applied to hide the blemishes. National Sealing mobilizes across the US for Sealing Natural Stone, Sealing Granite, Sealing Limestone, Sealing Blue Stone, Sealing Slate

[@soldbymartha]

Is the coating the same as sealer

[@HONEYMARIEZ]

Which coating did you use please?