Art deco pendant with blue stone

This pendant dates from my art deco period a few years ago.
I still love it though.
The dark blue contrasts nicely with the gold color. Its only about 1,5 cm high but it looks very monumental. You can see the same ornaments they used for the pendant on art deco buildings.
It might be brass, its certainly not gold. The stone might be glass. It has a small crack on one corner but you can hardly see that.
Another one for my kids' inheritance.