The progress of the construction industry on the one hand and the different tastes of people on the other hand have led to the invention and expansion of all kinds of artificial stones. In this research, the effect of natural stone characteristics, the type of aggregates, the quantity and quality of the adhesive matrix, and the types of additives on the mechanical properties of artificial stones have been studied. For this purpose, several artificial stone samples were produced using carbonate aggregates with different grading, and polymer and cement matrices with or without addition of silica (quartz) and glass fibers, and then their mechanical properties were examined in the laboratory. Based on the results, polymer artificial stones had better results than cement artificial stones and natural stones in terms of specific weight, porosity, uniaxial compressive strength and tensile strength. In all cases, the addition of silica improved the properties of artificial stone. Also, the addition of glass fibers had almost no effect on the uniaxial compressive strength of artificial stones, but improved other properties. The highest uniaxial compressive strength equal to 109.1 MPa was obtained from artificial marble consisting of 18% epoxy resin and 10% silica additive. Likewise, the lowest water absorption of 0.26% was observed in artificial marble with 18% epoxy resin and 10% silica additive. The results of this research show that the type of natural stone powder, aggregate size, type and amount of adhesive matrix, and the type and ratio of additives are effective in determining the mechanical properties of artificial stones.