Framed with rhodium plated sterling silver, these stunning contemporary stud earrings feature a hexagonal prism shaped black onyx gemstone. These earrings have a post & butterfly clip and are suitable for pierced ears only. Black Onyx has been used in jewellery for centuries, most notably in ancient cameo jewellery. Black Onyx Information: Number of Stones: 2 Stone Shape: Hexagon Stone Size: 7mm x 7mm Carat Weight: 2.20ct Natural/Created: Natural Black Onyx Country of Origin: Brazil