A carnelian intaglio featuring a double profile portrait of a man and a woman, a classical motif popular in ancient Rome and later revived in the Victorian and Edwardian periods. Carved from carnelian agate, a reddish-orange to brown hardstone, the design is executed in intaglio, typically used for sealing or as a decorative element in jewelry such as rings, pendants, or brooches. Intaglios For Jewelry Designers And Collectors.