Pre 1929 Crystal Cut Vase

My sister and I have one each of these My aunty has matching larger wide vase and a fruit bowl. They were wedding presents to my grand parents in 1929 in London. Apparently my great grandmother knew lots of people and had bought these some time before 1929. She had a skill of aquiring nice things at a good price.

The vases have no markings but each one is very heavy and stand 12 inches high. Across the top of the vase it is 7 inches and the base is 4.5 inches across.

I'd like to find out more on the history of these, who made them and when?

Thanks

Mark