Vintage best 1960s Haskell Type Brooch

This is a best vintage beaded assemblage brooch made in the 1960's. It is made of different beads in blue shades, wired to filigree stamped brass.
I have a strong suspicion that this is an unsigned Miriam Haskell piece. It has that more is more Haskell opulence that I love.
I have also seen a few other very similarly constructed pieces listed as Haskell, despite the lack of signature. Same type of base construction, same types of beads, just in different colors.
Clasp works great! Only flaw appears to be the gilt metal base has some black spots of discoloration. Not really noticeable however when wearing it. Measures approximately 2.5 inches across.
Please study photos carefully as all sales are final.