Items like these are of interest to Paperweight collectors and are also known as "stem paperweight" or "mantel ornament".
Height can vary from say 6 inch / 15 cm to around 8 inch / 20 cm, but usually the "paperweight" top is no larger than about 4 inch / 10 cm in diameter. And even with a sold dome top, they usually weigh in at less than 2 lb / 1 Kg
So this example is unusually large in the "paperweight" section - unless others of this size are more common in Germany and other parts of mainland Europe.
I do not recall seeing another one like this, especially with the decorative cutting.