Diamond and Gold "Sea Urchin" Style Brooch or Earring Component

This item appears to be a single component, possibly a brooch or an earring (if part of a pair), crafted in a distinctive 'sea urchin' or 'sunburst' style. The primary material is a rich yellow gold, which forms a textured, three-dimensional disc-like base. The outer perimeter of this disc is heavily textured with numerous small, radiating, spiky projections, giving it a tactile and organic appearance. These projections are uniformly sized and distributed, indicating careful craftsmanship. At the center of the gold disc, there is a cluster of round, brilliant-cut diamonds set closely together in what appears to be white gold or platinum to enhance their brilliance. There are approximately 7-9 diamonds visible, forming a circular pavé setting. Each diamond appears to be relatively small, likely melee to small accent stones, but together create a sparkly focal point. The overall form suggests it could be a standalone piece of jewelry designed to be eye-catching. While no maker's marks or signatures are visible from the provided image, the detailed gold work and diamond setting suggest a piece of quality jewelry, likely from the mid-20th century, possibly 1960s-1980s, a period known for bold, sculptural gold designs. Condition appears to be good with no obvious damage, chips, or missing stones, though a thorough inspection would require higher resolution images and multiple angles. The gold exhibits a lustrous finish, suggesting minimal wear to the surface. Its unique design and material composition contribute to its potential intrinsic and aesthetic value.