Heavy Russian Gold color metal applied with rivets in layers to a lacy back plate. Full of Topaz and Amber color glass stones. Rich, warm, and alluring earth tones. A few stones have a different table cut upon careful inspection and have likely been replaced. Intricate and labor intense. This is a large one, just shy of 4 inches x a bit better that 3 inches wide. It is extremely heavy. Clip is secure and functions well. This is a positively dramatic piece, and wears stunningly on velvet ribbon around your neck. Be prepared... the actual dimensions don't describe how seriously substantial this clip is! Ca., 1930 and is in very good condition.