One of our largest reversible pendants we have ever made includes both Ammolite and Gold Quartz. We used a 10mm Ammolite with lateral color change to give a true aurora effect to this piece on one side. Then we used only the finest G4 quality quartz on the other. Paired together in our 14Kt yellow gold four prong setting for maximum viewing angle. Nothing exemplifies the beauty of the Great North like Ammolite and Gold Quartz.