Our custom engraved signature stones are 100% NATURALLY polished stones. These stones are NOT machine made. Each personalized stone order is processed individually and each is custom engraved one at a time by hand, by our talented engraving staff. Because these are real stones no two are the same, they vary in size, shape and color. You can opt to have our smaller stones engraved with a single word or name, or choose our larger stones and have your favorite sentiment, company logo or personal message engraved. Our custom engraved stones will last a lifetime and make great gifts for family, friends and co-workers.