Southern Cross Crux Constellation 9ct Gold Blue Stone Kangaroo Antique Australia

Beautiful pin so nice, in good antique condition. The gold looks more like rose but could be yellow not totally rose antique rose. The bar is white metal. I don't know for sure what the stones are but not aquamarine more paste, but beautiful.  Aprox 3.1g. Please study photos. Measures approx 5.5x3cm. Thanks for looking:-)

Ps.Box just for display.