Cosmos Granite & Marble is a customer focused supplier of Natural Stone, Quartz, Sinks and Tile. We believe in providing quality product at a fair price. We stock first choice material for Natural Stone, and are a manufacturer of quartz slabs. Cosmos Quartz slabs are the world's largest at a nominal size of 135" x 75"!

Our line of floor and wall tile are unique to the market, and like our natural stone slabs, high in quality.

Our new Showroom in Kent WA contains the largest slab selection in the pacific northwest. The customer experience is like no other!