Sterling Silver Pearl Stud Earrings and Jacket . Sophisticated jacket earrings create a look of unparalleled elegance. Below a sterling silver stud, three round freshwater pearls emerge, measuring 6 mm and 7 mm. A perfect study in contrasts, the Rock & Pearl Collection reflects the diverse nature of the Canadian landscape. Grandiose mountain peaks and quiet streams remind us of the strength and gentleness in nature. These jacket earrings have a unique shape that evokes these contrasts with sharp studs and luminous round pearls. Immensely flattering, they'll take you from day to night without missing a beat. Studs and pearls combine to create timeless style in the Birks tradition of exceptional craftsmanship.