Yellow opal is a classic gemstone with distinct healing and metaphysical properties. It will eliminate the bad luck, and you will find yourself happy with the luck that you experience in its wake. Moreover, it will work as a powerful shield against potential dangers and disasters. It is a gemstone that will bring you all happiness and cheer into your life and will make your life relaxed, and focused on the object that you have ahead.Healing properties for Yellow Opal. ... Opal can encourage inventiveness and creativity. It is a great stone for removing blockages, especially self imposed ones that limit personal growth. Yellow Opal is said to enhance psychic abilities.