I doubt if either of the bracelets worn by Princess Margaret were Greville pieces.

Both were auctioned and, as there was no hesitation in giving provenance details for some other items, I think Mrs Greville would have been mentioned if she originally owned the bracelets. Her name would increase the value.



Link to Christie's with the information https://www.christies.com/lotfinder/lot/an-art-deco-ruby-and-diamond-bracelet-4718177-details.aspx?from=salesummery&intObjectID=4718177&sid=39b681ed-4afd-4e0b-b9bd-92f79fb2ff59


The second ruby bracelet featured synthetic rubies, once very fashionable and used by many leading jewellery firms.



Link to Christie's https://www.christies.com/lotfinder/lot/an-art-deco-synthetic-ruby-and-diamond-4718104-details.aspx?from=salesummery&intobjectid=4718104&sid=56d3dcbb-1374-4a13-a731-a25b2647d694