As I was preparing to list the Edwardian collier de chien in the shop last week, I searched around a bit for images of other styles. Ten minutes quickly turned to sixty minutes. I don't think I blinked. The collier de chien was popularized by Princess Alexandra (later Queen Alexandra), who supposedly wore the neck-hugging necklaces to hide a scar. The style was quickly adopted by women in England and beyond, making the collier de chien (and plaque de cou) one of the most recognizable styles of Edwardian jewelery. This Pinterest board shows many great examples, including several unbelievable plaque de cou by Lalique and the like.