DIA-GLO™ buffing compound: Dark Granite. 1 Liter. Dia-Glo™ buffing compounds are specifically formulated to achieve the best possible finish on stone surfaces. Easy to use, they never mark the stone in any way and yield incredibly high gloss finishes in a very short time. These compounds can be used in stone fabricating shops, for floor restoration and as a maintenance buffing compound. Dia-Glo™ D is for dark colored granite. Its dark hue will not highlight the normal microscopic cracks on stone surfaces and will bring out the rich color and gloss on medium to dark stone.