This is a very unique because one side is natural rough and the other side is polished.. These stone beads were cut from large agate geodes. The smallest stone is 28x38mm and the largest is 33x43mm. Use the dime and quarter to visualize the size of the stones. These Agate Freeform Strands are one of a kind. Since they are one of a kind we display the actual strand that you will receive. We are unique in that we being bead enthusiast ourselves we understand the disappointment of receiving something not as presented. This is very time consuming but we feel it is important to sell exactly what our customers are expecting.