Cameo “en Habille” with Old Mine Diamond in 14k White Gold Mount, c 1920s. *Chain not included*

This convertible brooch is a highly collectible "cameo habillé" or “dressed” cameo in which the subject of the cameo is wearing a miniature piece of jewelry -- in this case her own genuine diamond necklace.  The cameo is of a very fashionable woman of the 1920s, carved in exquisite detail — her hair is bobbed, and the diamond in her necklace highlights an old mine cut diamond. Finely worked in 3 layers, the top orange layer of the shell is used to highlight the head band in the woman's hair and the bodice of her dress.  The cameo has a bale allowing it to be worn as a necklace and its original pin and period fold over locking c-clasp, marked 14k, is in perfect working condition. *Chain in picture not included.*  The cameo measures approximately 1 7/8" x 1 5/8" and weighs 14.6 grams.