Whimsical Cartier Rock Quartz 18k Gold & emerald Duck circa 1960s

Lovely sculpture credited to Cartier from the 1960s. I adore it and wear it frequently. This line of " WHIMSICAL" jewelry that begand in the 1930's came back into fashion and was suggested for daytime wear! Mostly animals and insects, birds. My very best find from a junk estate lot. I understand the sister duck was auctioned in the past at double digits!