This is a pedestal that I originally designed for a crystal I grew. You can use it for whatever you want. There are 4 versions, one with rock decorations, one without rock decorations, and variants of both with a lower rim. (it is recommended that you print with a lower layer height, and use organic supports)

[If you hit "load model only" when importing the file, please make sure to scale it to your desired size. In the picture, it is on 302.15% scale.] Printed on a Centauri Carbon.