100% Natural OPal Rough Gemstone Rough Natural Gemstone for healing decorating cutting and replicating carving. Each of our opal gemstones is reviewed by our experts for the very best quality and customer satisfaction. This rough stone is from the Opal mines in Ethiopia. This charming opal makes a perfect gift for everyone. 10-15 MM 25 Carat lot (5-8 pieces) Guaranteed 1 working day dispatch If there are any questions and any bulk investigations you will not be contacted