Marquise Cut Light Blue Stone Pendant with Accent Stones

This is an antique or vintage pendant, likely crafted in a white metal such as silver, white gold, or platinum, or perhaps a base metal with a rhodium or silver plating. The central feature is a marquise (or navette) cut light blue gemstone, possibly topaz, aquamarine, or a glass/crystal imitation, which is prong-set within a stylized, somewhat geometric frame. The main gemstone exhibits visible facets and appears to be slightly cloudy or has some internal characteristics, though this could also be surface wear. The frame's design could suggest an Art Deco or Mid-Century Modern influence, characterized by its clean lines and angularity. Flanking the central stone on either side are two smaller, round, faceted clear or slightly yellowish accent stones, which are also prong-set. These small stones could be diamonds, white sapphires, or clear zircons/glass. The metal setting shows some signs of wear, including minor scratches and possibly some tarnishing, especially visible on the prongs and around the edges of the frame. The bail, which connects the pendant to the chain, is integrated into the top of the frame design and appears sturdy. The chain itself is a curb link or similar type, also in a white metal, and shows consistent wear with the pendant. The craftsmanship, while appearing mass-produced, shows careful setting of the stones. There are no visible maker's marks or stamps in the provided images, making a definitive identification of the metal composition or exact age difficult without further inspection. The overall condition suggests it has been worn and cherished.

Upon visual examination of this vintage pendant, my assessment points to a piece likely from the Mid-Century era, displaying design characteristics reminiscent of that period. The central stone is a marquise-cut, light blue gem, most likely a synthetic spinel, blue topaz, or high-quality glass, given its color and the era's common materials. The accent stones appear to be machine-cut and are likely glass paste or possibly zircons. The setting is a white-toned metal, probably sterling silver or a rhodium-plated base metal, showing expected signs of age and wear, including minor surface scratches and slight patina, but the stone settings appear secure. The overall value is primarily driven by its aesthetic appeal as a vintage costume or semi-precious piece, rather than the intrinsic value of its materials. The market for similar non-precious metal, synthetic stone jewelry from this period is modest. The craftsmanship appears to be of good mass-produced quality. It is crucial to note the limitations of this appraisal, as it is based solely on images. Full authentication would require physical inspection. This includes testing the metal to determine if it is silver, white gold, or platinum, and gemological testing of the stones to confirm their identity (e.g., natural vs. synthetic, specific mineral) and to check for any maker's marks or hallmarks not visible in the photograph. Without this in-person verification, the piece is appraised as semi-precious or costume jewelry.