Gold tone ‘Light As A Feather’ Necklace. A necklace that’ll make you feel as light as a feather. Chain length is almost 42cm + 4.5cm ext. Fun Fact: No one is quite certain what the origin of the idiom “as light as a feather” is, but its meaning is quite literal. However, many believe it to have originated in the ancient Aztec culture and even dates back to 1812!