Lady Maria Hamilton, 1802, by Thomas Lawrence.
Inquiring Reader: You’ve probably seen the necklaces dozens of times without noticing them. I have. These beautiful single string coral necklaces worn by Regency ladies escaped my attention until my friend and blogging partner on Jane Austen Today, Laurel Ann of Austenprose, sent me some spectacular images, such as the one of Lady Maria Hamilton, who died in 1814 unmarried. Coral has enjoyed a long and ancient tradition, first worn as a talisman and later for its color and beauty. One of my favorite drawings by Peter Paul Rubens depicts his son with a coral necklace. At the time coral was thought to protect the wearer.
Nicolaas Rubens Wearing a Coral Necklace, Peter Paul Rubens, Red and black chalk heightened with white and some black ink on paper, c. 1619
The tradition of giving children coral necklaces continued through the 19th century, as shown in this detail of a late 18th century John Hoppner painting of one of the Sackville girls. The gemstone was considered a guardian of sorts, protecting children from illnesses like stomachaches, fever, typhus, smallpox, and rickets. The mala beads were polished to a smooth sheen and matched in color. Bead sizes could be similar or gradated from small to larger stones that were strung in the center.
The Sackville Children, detail, John Hoppner, 1796
Handmade jewellery created during the late Georgian Era (1760-1837) is extremely hard to find today. As styles changed, the pieces were remade rather than tossed out or sold. Until the latter part of the 18th century, coral was harvested from the sea largely by dredging. Fine quality red coral came from the Mediterranean – Algeria, France, Italy, Morocco, Spain, Tunisia and the islands of Corsica, Sardinia and Sicily, with some saying that the best corals came off the coasts of Algeria and Tunisia. Eighteenth century coral was a rich warm red and is unavailable today. In fact, original antique jewellery made with dark red coral is so difficult to find that it has become a highly prized collectible.
Jane Elizabeth, Countess of Oxford, John Hoppner, 1797
Early 19th century red coral necklace
Simple round necklaces, like the one worn by the Countess of Oxford, were popular and complimented low necklines, but chokers were also fashionable, like the Georgian Cannetille Sardinian red coral four strand necklace on the left. Coral is made up of the skeletal material built up by small animals that live in slow growing colonies in the sea. Colors range from vivid orange, red, and white, to salmon and pale pink (called angelskin coral). In jewelry making coral is either carved into beads, cameos, and other forms, or is left in its natural branch-like form and simply polished. (My mother had such a necklace, which I played with as a child.) The most sought after color (and the rarest) is a deep red, as in the necklace at left. Coral manufacturing during the Regency Period consisted primarily of filing beads of smoothed coral and stringing necklaces. Because coral consists of calcium carbonate, it is extremely sensitive to chemicals, perfumes, and body acids. Like pearls, the necklaces must be washed with a damp cloth (no detergents) and restrung periodically.
Little boy placing a coral necklace on a dog's neck, Martin Drolling
Many mystical and medicinal properties were attributed to coral, among them vitality, physical strength, stronger marital relationships, wealth, increased sensuality, and protection while out to sea. Coral was also used as a medicinal powder. Primitive physics believed that coral oxides mixed with honey made a person strong. Mix it with betel leaf and it made a potent cure for cough and heart disease. Coral powder is still a popular aphrodisiac in India today, which prompts avaricious collectors to dynamite coral reefs, putting fragile reefs in acute danger. In the detail of a 17th century drawing by Jacopo Vignali at right, one can easily see why this semi-precious stone was considered to have sensual qualities. The combination of the coral necklace and her full lips make the young woman look both fragile and seductive. Thank you, Laurel Ann, for introducing me to this fascinating topic! As you can see, I got a little carried away.
More information about corals can be found in these links:
In 
The wood rectangular box opened to reveal a sloped writing surface embossed in leather. Compartments stored writing implements like paper, pens, ink, stamps, sealing wax, etc. From the black and white image of Jane’s writing desk, hers seems to be a simpler model than the Sheraton writing box depicted above.
Jane Austen's World 