A Stunning Large Ethiopian Opal which has an amazing colour play. It has a beautiful design to show off the quality of the gorgeous and fantastic gemstone. This stunning Ethiopian Opal is really amazing and has a wonderful colour play and measures 1.0 in length. It is fully hallmarked for 9ct gold with "375", anchor for Birmingham, "CR" and date mark "r". It weighs 2.5 grams. Size O. Excellent condition.