Vintage Intaglio Crystal Neptune Pendant with Braided Gold Frame

This is a circular pendant featuring an intricate intaglio carving on a clear substance, likely rock crystal or high-quality glass. The central motif depicts a mythological figures, specifically Neptune or Triton, shown with a merman's tail, holding a trident, and reclining alongside acanthus-style flourishes that suggest water or waves. The carving is executed on the reverse side (reverse intaglio), giving the figure a frosted, three-dimensional appearance when viewed from the front. The crystal is housed in a decorative yellow gold frame characterized by a double-strand braided or 'twist' border design. The frame includes a tapered bail at the top for suspension on a chain. Regarding condition, the gold frame shows minor surface scratches and a warm patina consistent with age, particularly where the braid connects to the bezel. One notable area on the left side of the inner bezel appears to have a small solder mark or slight deformation, which could indicate a past repair or a manufacturing variance. The crystal itself appears clear without significant clouding, though microscopic flea bites may be present along the edges of the intaglio. This piece reflects a mid-20th-century aesthetic, possibly 1950s-1970s, drawing on Neoclassical revival themes. The craftsmanship of the carving is quite detailed, showcasing muscle definition and fine lines in the trident and foliage, suggesting a high level of artisanal skill.

I have conducted a visual examination of the Vintage Intaglio Crystal Neptune Pendant. The piece exhibits high-quality craftsmanship, specifically in the reverse intaglio carving of Neptune. The depth of the carving and the anatomical precision suggest a skilled lapidary artist. The frame, a 14k or 18k yellow gold braided twist, shows a rich patina and minor wear consistent with a mid-20th-century origin (c. 1950-1960). While a small solder repair is visible on the inner bezel, it does not significantly detract from the piece's structural integrity or aesthetic appeal. Market demand for Neoclassical revival jewelry remains steady, particularly for maritime motifs. Comparable sales of gold-framed rock crystal intaglios of this size typically range between $1,200 and $2,200 depending on gold karat weight and artist attribution. The rarity of this specific Neptune composition, featuring a merman's tail rather than a standard humanoid torso, adds a slight premium for collectors of mythological subjects. Value is predominantly driven by the artistry of the carving and the gold content. However, there are limitations to this image-based assessment. I cannot definitively distinguish between natural rock crystal and high-lead glass (paste) without a refractometer or thermal conductivity test. Furthermore, the gold purity must be verified via acid testing or XRF analysis, as no hallmarks are clearly visible. A full authentication would require a physical inspection to check for 'flea bites' or chips under 10x magnification and a review of any existing provenance to confirm the carver's studio.