This jewerly pendant has been made using stacked glass and fused. If you are new to glass fusing then you can check out Glass kilns here, for little projects like this.
Microwave kilns are perfect and affordable, especially if you are like me and just want to have a play or a dabble in glass fusing. You can see the full tutorial for this fused glass piece here.
Such a great way to make your own glass jewelry, creating unique one-off fused glass designs.