Konstantino Sterling 22K Blue Stone Cross Pendant Vintage

This estate piece by Konstantino is sterling silver and has a light bluish green cabochon gemstone that is bezel set in 22K yellow gold. I don’t know what the stone is, it may be aquamarine but again I don’t remember. This is an older piece. I have not cleaned or polished it as I love the patina. No box. Sorry no trades.