This listing is for any 25g lots of gemstone cabochons (use the drop down bar to select your cabochon). Cabochons are usually used in making jewelry. The fronts are polished and the backs are cut flat (but not polished). Some people will use cabs as worry stones or pocket stones (just like tumbles). We price our cabochons by weight since we have so many sizes and shapes. For example, if a 25g lot is $10, you are paying 0.40 per gram. With the 25g size option you will receive 2-5 cabs (depending on size). Current smaller cabs: citrine, black tourmaline, obsidian, chrysoprase. Average dimensions: 1cm - 5cm (this is at the longest point; length).