How the verdict is worked out
Each answer counts toward "real pearl" or "imitation." Magnification and the drill hole count most, because Jewelry Business calls magnification the most reliable way to spot imitations. The tooth, weight and temperature tests count least, because polished pearls can feel smooth, glass can feel heavy and cool, and some imitations are coated to feel gritty. No home test can tell natural from cultured pearls; that needs a lab X-ray. Full guide: how to tell if pearls are real.