Art Deco beauty

I bought this ring on trademe (NZ's eBay) a couple of years ago. I asked the woman what its story was and why she was selling it. It belonged to her grandmother-in-law who was a war refugee from Czechoslovakia. The seller didn't want it anymore as she was a farmer and didn't wear jewellery. I was rapt to get it, had it fixed up and it hasn't left my finger since. I hope its original owner would be pleased to know it is enjoyed!

A jeweller told me the middle diamond dates from the late 1800s.

PS this was taken on my my tripod - my one main purchase from Sydney!