Opal Ethiopian Fire Opal Heart Shape Opal Cabochon for Jewelry Making Use Top Quality Opal Gemstone AAA Natural Multi Fire Opal Cabochon. Weight-83 ct Shape -Heart Ethiopian Welo Opal is a stunning gemstone that is highly sought after by jewelry enthusiasts and collectors alike. This gemstone is known for its unique play of colors, which is caused by the diffraction of light as it passes through the stone. The colors that can be seen in Ethiopian Welo Opal range from bright reds and oranges to d Diffraction Of Light, Welo Opal, Opal Gemstone, Fire Opal, Heart Shape, Heart Shapes, Jewelry Collection, Opal, Etsy Accessories