"Sunny Side Up Egg" Deep Concave Mid-Century Statement Brooch

The pictures just don't do this one justice. It measures almost 2.5" x 2" and is .75" deep. It feels rather heavy for it's size, so I think the stones may be leaded glass. The large citrine color central stone is open back, and overall has the look of an sunny side up egg. The back is very heavily plated, likely rhodium, and the construction is very high quality. The only call out that I can really note is that some of the outermost ring of stones are very slightly darkened. This is a stunning, unique unsigned beauty!