Pearl 14K Solid Yellow Gold Square Tie Tack Lapel Pin Vintage Karat cheapest KT

cheapest Pearl 14K Solid Yellow Gold Square Tie Tack Lapel Pin Vintage Karat KT
Materials: solid yellow gold marked (14K) but the pin/tack part is not solid gold & cultured pearl
Condition: excellent vintage with wear
Size:
L - 11 mm
W - 11 mm
Pearl - 6 mm
Weight:
2.21g (without clench back part)
Maker's mark: none

Questions welcome.