Noun
gold piece (plural gold pieces)
(numismatics) A gold coin.
(fantasy roleplaying games) A common unit of currency in many fantasy role-playing games.
“There is a black dress with a black and gold piece, and a colorful dress with a piece that represents those colors. Source: Internet
While weeding in her garden last week she suddenly noticed a bright coin in the soil and thought it was a penny: Upon closer inspection however, it turned out to be a five dollar gold piece! Source: Internet