I believe it is crystal, it is about 9 1/2 inches about 7 pounds, Etched on the bottom is Orrefors 4283-111 Olle Alberius.
View attachment 1340101
This is the best I can get of the bottom.
I always wondered about it.Olle Alberius, is a Swedish Glassware Company based in the Town of Orrefors. They have a history that goes back to 1898. Your piece is definitely crystal and may even be considered "Art Nouveau"
That could date it at "Pre-World War I"
Congratulations