Antique Vauxhall Glass Brooch ~ Needs Repair

this brooch is so very beautiful in kind of a bow tie shape made of glass ~ my research says maybe Vauxhall glass I am not an expert, but I believe that this is a victorian era brooch the glass, which initially appears to be black, is actually, when you look at it in the sun, a green colour on one end, and a brownish tortoise shell on the other end brass tone trombone style closure there is a separate piece of glass, in a marquise shape, that comes with the brooch ~ I don't know where, or how this was attached, or if it is a part of this brooch at all there is some breakage in the central part of the brooch (pictured), as well as a lot of glue residue in that area measures approx 2.25" wide x approx 1" tall my hope is that someone can either repair or repurpose this beauty, or even love it for what it currently is *** I am very open to offers in general, but especially on this item ***