Vintage Geometrical Pin / Brooch with Black Onyx and Marcasite 925 Sterling

This vintage geometric pin with black onyx and marcasite stones is a perfect accessory for women on special occasions like Mother's Day, Christmas, or birthdays. Made of 925 sterling silver, the brooch features a unique trapezoid-shaped black onyx stone as the main focal point. The intricate design and use of black and silver colors make it a versatile piece that can be worn on various occasions to add a touch of elegance to any outfit.