Ah, the "pulling" issue hadn't occurred to me. Gold is good because it's flexible but pure gold is too soft and wears too easily so an alloy is used. 14K gold

Ah, the "pulling" issue hadn't occurred to me. Gold is good because it's flexible but pure gold is too soft and wears too easily so an alloy is used. 14K gold alloy seems to be the sweet spot between flexing and durability, modern 18K loses the former.