Solitaire Circular-Cut Stone Tie Tack or Lapel Pin

This item is a single-stone solitaire pin, likely intended as a tie tack or a decorative lapel pin. It features a large, brilliant-cut colorless stone, which exhibits high dispersion and fire consistent with a high-quality cubic zirconia or a lab-created white sapphire, though diamond testing would be required for confirmation. The stone is set in a multi-prong basket mounting that appears to be crafted from yellow gold or a high-quality gold-toned metal alloy. The metal post is smooth and straight, designed to be secured by a clutch or butterfly backing (not visible in the frame). Physically, the stone shows a modern round brilliant cut with a symmetrical facet arrangement. The condition appears excellent with no visible chips or abrasions to the table or girdle facets, and the metal shows minimal signs of oxidation or wear. The craftsmanship is clean, with the prongs appearing tight and well-aligned. Based on the cut and mounting style, this piece likely dates from the late 20th century to the present day. It serves as a classic piece of men's or unisex formal jewelry, characterized by its simplicity and light-catching properties.