The present invention extends to methods for attaching a piece of glass to a piece of stone. In some aspects, specifically designed glass inlays are secured within a void in a piece of stone. The glass inlays can include colored glass letters, numbers, designs, etc. In some aspects, glass inlays and voids are specifically designed to match one another. Glass inlays can be affixed within the voids using an adhesive. Grout can then be used to set the glass inlays in place. The result can be monument or marker that commemorates an event or person.

A process for forming an inlay in a cured concrete structure includes forming a pocket in a preexisting concrete structure, filling the pocket with a cementitious mixture, curing the mixture in the pocket to form a cured mixture, and polishing the cured mixture in the pocket. The cementitious mixture includes a Portland cement, an admixture comprising at least one of a strengthener, a plasticizer, or an accelerator, and an aggregate.