Hot Air Balloon Themed Pendant in Sterling Silver with Gemstones

I have never seen a pendant like this. It has an oval slab of azurite malachite in a sterling silver bezel. There is a landscape overlay in sterling of pine trees and mountains. There are three hot air balloons formed of faceted garnet, citrine and peridot. The way that this is constructed one could wear it reversible as well. 

It measures 1 1/4" tall without the jump ring. Weight: 10.8 grams. No hallmarks. Acid tested the silver and the stones were tested.