Lower grade Sodalite tumbles, with a nice polish throughout. They measure 25mm by 25mm approximately, and photo is to show natural variation between them as you get one of these gems.
Gemstones come in different grades, and we have marked this as such, perhaps about C grade, with A being the best (with gem grade being AA or higher). You get shades of blue mixed with more of the beige patterning than normal - perfectly usable and nice to behold. Hence the lower price for a 'large' tumbled gemstone.