No they are completely separate pieces.
By Garrard: the Gold Dahlia, set with diamonds on the petals is quite a different shape from the one set with carved rubies.
http://i144.photobucket.com/albums/r...web/Dahlia.jpg
By Grima: the one with the rubies (which stones are formerly part of a an Indian head ornament) was a prize winning piece - It was one of 12 pieces which, as a collection, had won the 1966 Duke of Edinburgh's Prize for Elegant Design.
http://i144.photobucket.com/albums/r.../grimacrop.gif
Yes, they are both distinctive designs, but certainly two individual pieces.