Dog collar
from the Antique Jewelry University
A dog collar necklace fits closely to the neck and is usually comprised of several rows of pearls or beads or a wide ribbon ornamented with gem set plaques or brooches. The dog collar necklace was popular in the Edwardian period in emulation of Queen Alexandra who wore multiple rows of pearls to conceal a scar on her neck. The French term is collier de chien.