Seventeenth century Ottoman emerald earrings, Pair of very rare enameled gold earrings with emeralds and small diamonds. Ottoman ca 1690 see for very similar example exhibited in the Top Kapi museum Istanbul.
Alexander Calder : Paris à Pompidou, American sculptor known as the originator of the mobile, a type of moving sculpture made with delicately balanced or suspended shapes that move in response to touch or air currents.
Art Smith’s jewelry is dynamic in its size and form. Although sometimes massive in scale, his jewelry remains lightweight and wearable. See "From the Village to Vogue: The Modernist Jewelry of Art Smith".