The finished items. Two pendant discs and the man’s ring. Note the diamonds that were cast in place.
The casting machine used. A Manfredi Multiherz. AKA as induction spin casting with atmosphere control.
We still have grain size and porosity issues to work on but we got a lot proven. Purple gold will cast when protected from oxygen, filling is adequate, the color is fantastic. I showed these to a couple friends and both ladies wanted to buy a pendant right on the spot. 
