14K Gold Fill hoops 13mm SMALL 25mm (Lab Grown) 14K Gold Fill Hypoallergenic Nickle & lead free Mystical Beliefs In mystical circles, opal is considered a stone representing hope, innocence and purity. It has strong connotations of happiness, faithfulness, loyalty and confidence. All of these are in spite of its significant period of darker connotations. Healing Powers of Opal For those who believe in the healing power of stones, opal is good for eye infections and diseases, as well as the enhancement of other healing processes.