Featured Cut Crystal Decanter.... Georgian?

Picked this up recently for a song at the thrift. I am seeing similar listed as Georgian or early Pittsburgh Glass. Some are also saying Irish. All the patterning is cut, including the stopper. Neck rings are applied. Has some inclusions, particularly in the neck rings. There is also a bit of frit in the flared top. Don't know if this is indicative of anything but thought worth mentioning. As you can see, it has a ground pontil mark on the bottom and lots of wear. I don't have it in front of me but about 10" tall. Any confirmation for origin and age?

 

Might be Georgian, how grey is the glass? It’s a classic three ring shape.

 

Would not say grey. Here it is against a white background.

 

Somebody blew it but good. Somebody who is not named Brad.

 

Thats really lovely Brad.

 

Hm. Grey enough. I think Georgian.

 

That is nice. They call this a Prussian shaped decanter with flute cut base and mushroom stopper.
I'd bet 1800-1830 Irish or English.

 

I didn’t know the they called it Prussian shaped or a Mushroom topper but I agree with glassluv. I got a somewhat similar one recently. That shaped stopper seems to very frequently be used in Ireland around that time. The form of the body too. Nice score!