Petoskey stones in freeform cabochon cuts showcase the distinctive hexagonal fossil patterns that make these Michigan treasures unmistakable. Each piece ranges from 15mm to 33mm, offering versatility for jewelry designers and collectors alike. Hand-selected and polished to reveal the intricate coral-like formations, these cabochons display the natural beauty of 350-million-year-old fossilized coral. Perfect for pendants, rings, or display pieces, they capture the geological heritage of northern Michigan in every stone.