This particular piece has the ashes permanently solidified in the empty chamber under the main stone. The center is 5x6mm. If you need further customization, including stone color or shape, or to add engraving, please contact me for a custom order at https://www.sugarberrymemorials.com Thank you! I would like to start by saying that if you are here, I am deeply sorry for your loss. I sincerely appreciate that you have considered me to help you through this difficult time. I always strive to create a straightforward ordering process, and the highest quality items to make this transition as seamless as possible. Please read thoroughly to ensure the best possible experience with your jewelry order. ❤ I highly recommend bookmarking https://linktr.ee/sugarberrymemorials as it has all of the info you will need during your order process. We send a collection kit automatically after purchase with a prepaid envelope you can use to send the ashes to us. Please contact me via call or text 619-559-5171 with any questions.