Manufacturing

Once the design is complete a wax is either carved by hand or milled by a machine in its ideal form.  The wax is a model of the finished piece and is attached to a rubber base which hold the flask (a metal cylinder).   Investment (plaster composite) is mixed with water from a powder form, then poured into the flask which is holding the wax model.  The investment hardens and the rubber base is pulled for the bottom of the flask, leaving the hardened investment and wax still held tight within the flask. 

The flask is put into a oven and heated to a high temperature to melt out the wax.   When the wax is completely melted out,  the shape of the wax is still intact within the investment.  That indentation in the investment is what will create the metal version of the original design.  After the flask has reached the ideal temperature for casting, the flask is removed from the oven and placed in a casting machine. 

In the casting machine the gold is mixed to the proper karat, melted, and then poured into the flask.  When the molten gold sets into the flask, the flask is then dipped into water to cool.  The gold piece of jewellery laying inside the investment is chipped out of the flask and cleaned to reveal the rough version of the finish product.   The ring is then filed and hand polished in preparation for the setting of the stones and the final finishing.