Vintage Serpentine or Jade Cabochon Brooch Appraisal
Category: Jewelry
Description
This is an oval-shaped vintage brooch featuring a substantial cabochon-cut stone, likely serpentine or a type of jade, set within a decorative gold-toned metal bezel. The central gem exhibits a captivating mottled pattern of various green hues, ranging from olive and moss green to lighter chartreuse streaks and occasional darker grey or black inclusions, indicative of its natural volcanic or metamorphic origin. The stone has a smooth, polished domed surface, allowing its inherent patterns to come through. Encircling the stone is an elegantly crafted twisted rope border, providing a classic and refined frame. The metal appears to be of a yellow gold color, suggesting it could be gold-filled, rolled gold, or a base metal with gold plating, showing minor signs of patina or surface wear consistent with age. No immediate chips or cracks are discernable on the stone from this perspective, and it appears securely set. The overall style is characteristic of vintage jewelry, possibly from the early to mid-20th century (e.g., Art Deco or Mid-Century era), combining natural materials with conventional ornamental motifs. While no specific maker's marks are visible, the piece demonstrates a good standard of craftsmanship for its type, suitable for a detailed appraisal report.
Appraisal Report
Based on my visual examination of the provided image, this vintage brooch presents as an attractive oval-shaped piece, likely dating from the mid-20th century, given its classic design elements. The central cabochon stone, with its mottled green hues and smooth domed surface, strongly resembles a form of serpentine or a common variety of jade (such as nephrite). The gold-toned metal setting, featuring a twisted rope border, appears well-crafted and typical of vintage semi-fine or costume jewelry from the era; it's likely gold-filled, rolled gold, or gold-plated, rather than solid gold. The brooch appears to be in good vintage condition, exhibiting characteristics consistent with age, such as potential minor patina or surface wear on the metal, though no significant damage like chips or cracks are discernable on the stone. Its overall aesthetic is appealing and desirable among collectors of vintage jewelry. Market demand for vintage cabochon brooches with natural stones is steady, with prices largely contingent on the exact identification of materials. Comparables include similar pieces with semi-precious stones (e.g., chalcedony, agate) set in gold-filled or plated metals. While not exceedingly rare, a well-preserved piece like this has a niche market. Factors positively impacting value include its good condition, appealing design, and substantial stone. However, the exact identification of the stone (serpentine versus jade) and the precise composition of the metal are critical determinants of value. Serpentine would command a lower price than jade. Crucially, this appraisal is performed remotely based solely on images. I cannot definitively verify the authenticity of the stone's identity (serpentine vs. jade) or the purity of the metal (gold-filled/plated vs. solid gold) without a direct in-person examination. For full authentication and a more precise valuation, gemological testing (e.g., specific gravity, refractive index) for the stone, and metallurgical analysis (e.g., XRF testing or acid testing) for the metal, would be essential. Provenance documentation would also add significant value.
Appraisal Value
$125 - $250