Victorian diamond and Ruby brooch

You know my love of brooches knows no bounds. This amazing early Victorian articulating brooch checks all of the "I love brooches" boxes. Clean beautiful diamonds, beautiful craftsmanship, COLOR, and an added bonus of movable parts. These are so hard to find. It has approximately 3.5 CTW of perfect old mine cut diamonds. All of them are very clean and very beautiful. The red gemstone in the center is a natural Ruby, unfortunately I do not know the treatment. It is made entirely in silver and has it original pin. It measures 2" x 1", and weighs 8.41 g.