Today we tackled a floor made with cheap travertine. "Cheap" means the tiles averaged better than 50% filler on the surface. This stuff was uneven, dull and had lippage like a pouting toddler.
We offered a basic hone and polish, then sealer. It worked. However, not glassy and deep like other jobs. I used Venom Premium Sealer, but am open to suggestions for next time.