Natural opal is a semi-precious stone characterised by the play of iridescent colours on its surface. This opal has an oval shape and a white colour that reflects light in various shades of green, blue, red and orange. It is 6.90x5.00 - 7.20x5.20 mm in size and weighs 0.40-0.60 carats per stone. This opal has visible inclusions, which means it is not clear. It has not undergone any treatment to improve its appearance or durability. Its iridescence is strong, it changes colour depending on the angle of view and light source. This opal comes from Ethiopia, one of the most important sources of opals in the world.