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These 4mm White with green pinfire Opal cabochons, are created with a lab grown material that retains all the colour and beauty of genuine opal and is often favoured for its affordability and iridescent fire. These are round with a 1.8mm smooth domed top. For use in a setting, bezel or cup, we have a large range of sterling silver and high quality plated metal settings available to create a stunning piece of jewellery with these gemstone cabochons. Calibrated gemstone cabochons are sized just under the specified size to fit correctly in a setting of the same size. All measurements are approx. and may vary. Glue is required to set these. These are also fantastic for use by silver smiths to set in own designs. See our Gemstone Reference sheet for further information on Lab grown Opal.
