This is an ornate decorative button featuring:

• Shape: Square with rounded corners, approximately 1 inch (25mm) across
• Material: Gold-toned metal with a lustrous finish
• Design: Intricate embossed relief pattern in the center featuring elaborate scrollwork and floral motifs
• Style: Victorian or baroque-inspired decorative elements
• Construction: Appears to be a shank-style button (likely has a loop on the back for sewing)
• Finish: Bright, polished gold-colored metal that catches light beautifully