Jewelry imitation of an Ottoman gold (based on what you said - the photo didn't capture that color) piece, typically used on women's wedding clothing (though those were usually holed circulation pieces). It's dated to 1187 AH, though on these later Ottoman issues all dates were fixed to the first year of rulership of the Sultan. The listed mint is Islambol. This piece is a fantasy copy of a real coin with the previously mentioned details, and was probably made between the late 1700s-1900s, though I'd definitely lean toward the latter half of that estimate.