Self Confidence Onyx helps to release negative emotions, sorrow, grief and it guards against negativity at you. Blue onyx sharpens your communication, senses and enhances self confidence and encourages a healthy ego. Crystals come in various shapes and sizes. Sacred Stone Collections is not an independent therapy, but one that is part of a holistic healing approach. By using this site and associated materials, you acknowledge and agree that you personally assume responsibility for your use or misuse of this information.