Inca Stone 20299 .75" x 24" x 24" Peruvian Travertine Paver Cremino: Inca Stone has been supplying projects for years with Peruvian Travertine pavers in both 2cm or 3/4" thick for concrete overlay applications, and 2.5cm or 1" thick for sand set installations. Unlike our competitors, it is not needed to utilize a 3cm or 1.25" paver for strength. Due to our density, we are able to use a thinner product, while reducing your overall cost for our material.