AI Appraisal Estimate

This is a large, vibrant Cobalt Blue pressed glass serving bowl, measuring 33cm in diameter. The item features a sophisticated 'sunburst' or 'starburst' geometric pattern radiating from a central circular focal point. The design incorporates intricate diamond-point texturing within leaf-shaped panels, alternating with embossed six-pointed stars and fan-like fluting toward the scalloped rim. Produced in France, most likely by Arcoroc (J.G. Durand/Cristal d'Arques), the piece is characteristic of mid-to-late 20th-century European glassware, specifically the 1970s or 1980s. The material is a thick, translucent tempered glass known for its durability. The color is a deep, consistent cobalt blue throughout. While the 'France' stamp confirms its origin, the piece displays high-quality mold work with sharp, crisp lines in the pattern. Condition appears excellent with no visible chips or cracks on the scalloped edges, though minor surface scratches consistent with shelf wear and utility may be present under industrial lighting. A retail sticker from a secondary market vendor is currently affixed to the center well. The scalloped edge transition is smooth, indicating a high-standard manufacturing process typical of French soda-lime glass production from this era.

I have virtually examined this 33cm Cobalt Blue pressed glass serving bowl, attributed to Arcoroc (J.G. Durand). The 'France' stamp and the specific 'diamond-point' and 'starburst' patterns are hallmarks of 1970s-80s French tempered glassware. The deep cobalt hue remains highly desirable among collectors of mid-century and retro kitchenware. Based on the visual evidence, the molding is crisp, and the scalloped edges appear intact, which is critical as these areas are prone to 'flea bites.' Demand for Arcoroc remains steady because of its durability; however, because these pieces were mass-produced for the global market, rarity is low. Recent sales of similar 12-13 inch platters in this specific colorway typically fluctuate between $40 and $70 depending on the venue. The presence of the original stamp adds value, though the current retail sticker should be removed carefully to avoid surface scuffs. Limitations: This evaluation is based on photographs. A physical inspection is required to detect 'sick glass' (internal clouding), deep utensil marks, or micro-cracks not visible in images. To fully authenticate the piece as Arcoroc rather than a period competitor (like Luminarc), I would need to verify the specific glass weight and thermal resistance markings often found in physical handling. No scientific testing is required for this class of soda-lime glass, but a blacklight test could further confirm the absence of modern repairs.