Vintage Cuna idol brooch

Vintage Cuna idol brooch

Vintage. Given to me in 1965 by a friend who lived for years with the Cuna Indians of the San Blas islands of Panama. I have worn it maybe twice since then so it’s in pristine condition.
Cannot find any stamps or hallmarks so it’s probably gold plated or filled but you may have better eyesight. Has the color of 18k.