I am not sure. They do not have to be a match. The cyphers were used on jewels given to people, not exactly as a family order, but with similar purpose, I believe. There could be many versions in existence.
The Royal Order of Victoria and Albert was a one-off type of order, in classes and not restricted to the Royal Family. Before that the monarch had often bestowed a miniature portrait or other jewel on certain people. For William IV, it had been thought there were none, but Queen Mary recorded that he made gifts of jewellery to his family in lieu of an Order - blue enamelled and diamond clasps bearing his cipher and Queen Adelaide's.
Ref: Royal Insignia, British and Foreign Orders of Chivalry from the Royal Collection, Stephen Patterson, The Royal Collection, 1996
--Previous Message-- : Thank you Mauriz for the side by side : comparison. I agree with you. : : --Previous Message-- : --Previous Message-- : : A good look at the diamonds, which looks : more like two rows in the surround. : : : I think the brooches are a match, the rose : shape is quite recognizable in the blow-up : of the bracelet, as is the shape of the : cipher AR: : : : : : : : :