Marine-inspired jewelry

Designers have long plumbed the depths of the sea, taking inspiration from its fantastic colors and shapes. Raising the creatures of Neptune's realm to heights of jeweled elegance (clockwise from top right): stingray brooch of emeralds, sapphires, diamonds, and South Sea baroque pearls from Nicholas Varney ($89,000; 212-223-1043); sailfish pin of opal and diamonds set in gold and platinum from Oscar Heyman ($30,000; 212-593-0400); pink frosted glass and diamond fish clip from Piranesi ($2,800; 212-332-7373); Pierre Sterlé's ca. 1959 angelfish brooch of mother-of-pearl, diamonds, and gold from Primavera ($20,000; 212-288-1569); Cartier's ca. 1960 lion's-paw scallop brooch with turquoise and sapphires from Primavera ($28,000); opal and diamond octopus pin from Demner ($7,750; 212-794-3786).