![Wax Designs, Wax Mold, and Ring Castings. Wax Designs, Wax Mold, and Ring Castings.](https://www.langantiques.com/university/wp-content/uploads/elementor/thumbs/shutterstock_586277237-qadv2rf6em9yeqe51o70v8frvdrcvsi0mmwqghp5e0.jpg)
A jewelry item that is cast has been made by a process that involves pouring molten metal into a mold and letting it harden. This process began in the 4th millennium B.C. starting with simple one-piece molds and evolved to three-dimensional two-piece molds. There are many mold types and casting methods still in use today.