Size: Small: 2.25-2.5 inches across, 170-180 g
Medium: 2.5-3 inches across, 200-230 g
Large: 3.5-4 inches across, 300-400 g
***NOTE TO BUYER***
This is a "random selection" listing. You will NOT receive the exact item photographed in the listing, but one that is very similar. However, due to unique nature of each mineral the size, shape and color may vary slightly.