Silver Stud Earrings with White Button Shaped River Pearl 7-7.5 mmPearl Stud Earrings These sterling silver stud earrings feature cultured white river pearls, each measuring between 7 and 7. 5 mm in diameter. The pearls have a classic button shape, which provides a slightly flattened profile that allows them to sit neatly against the earlobe. The bright finish of the sterling silver complements the natural lustre of the pearls. For secure and comfortable wear, each earring is fastened with a traditional butterfly