Agate and marble tabletop sculpture in a modernist style

This decorative object appears to be a contemporary mixed-media tabletop sculpture. It features a circular, translucent white agate slice with rough-hewn gilded edges, mounted on a gold-toned metallic armature. A secondary black circular element, which has a matte or velvet-like texture, is positioned at the center of the agate. The metallic frame consists of a vertical rod and a large curved arc, terminating in small spherical finials, which is consistent with mid-century modern or 'glam' aesthetic revivals. The entire assembly is supported by a weighted, cylindrical white stone base, likely marble or a similar polished mineral, displaying light grey and tan veining. The piece exhibits high-contrast materiality between the organic stone and the linear metal. No maker's marks, signatures, or branding are visible in the image to indicate a specific designer or manufacturer. The construction appears consistent with mass-market home decor from the early 21st century. Condition appears to be good with no obvious fractures to the stone elements; however, minor surface wear or oxidation on the gold-toned plating cannot be ruled out without a physical inspection.

Based on my visual examination of the provided image, this object appears to be a contemporary decorative tabletop sculpture. I observed a translucent white agate slice with gilded edges mounted on a gold-toned metallic armature, supported by a cylindrical white marble-like base. Based on what I can see, the materials and construction are consistent with mass-produced 'glam' or modernist-revival home decor from the early 21st century. I cannot verify the specific metal alloy or the geological authenticity of the stone from a photo alone; a physical inspection would be required to determine if the base is natural marble or a composite, and if the gold-tone finish is a plating or a lacquer. No maker’s marks or signatures are visible, leading to the hypothesis that this is a non-branded decorative accessory. My value estimate is based on typical market behavior for unbranded home accents of this materiality and scale. The piece appears in good condition, but I cannot rule out minor surface oxidation or stone fractures not visible in the photograph. Should this item be identified as a work by a specific luxury designer or high-end brand through provenance documentation or a discovered hallmark, the value could increase significantly. Conversely, if the agate is found to be a resin imitation or the base a weighted plastic, the value would likely fall below $20. To confirm authenticity and material quality, one would need an in-person examination by a specialist in mineralogy or decorative arts and a review of any original purchase records.