Oval Cabochon Gemstone (Possible Jasper or Agate)

This item is an oval-shaped, high-dome cabochon gemstone featuring a rich, earthy reddish-brown or sienna coloration. The stone measures approximately 15-20mm in length based on the scale of the wood grain background. It appears to be a natural mineral, likely a variety of chalcedony such as jasper or carnelian, given its opaque to semi-translucent appearance and matte-to-waxy luster. The surface exhibits significant signs of wear and age, including numerous fine scuffs, micro-pitting, and two distinct nicks or chips near the top left vertex that expose a lighter, whitish under-texture. The overall texture is somewhat weathered, lacking a high-gloss crystalline polish, which may suggest it is a found river stone or an antique bead that has lost its original finish over time. There are no visible maker's marks, signatures, or metal settings present in the image, suggesting it is a loose stone intended for jewelry mounting or a pocket stone. The craftsmanship is utilitarian, with a symmetrical but slightly irregular oval cut, typical of hand-polished lapidary work from the mid-20th century or earlier.