AI Appraisal Estimate

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Submitted photo · May 23, 2026

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AI appraisal

AI analysis & estimate

AI-Generated · Verify before acting

Everything below is generated by AI for informational purposes only. AI can make mistakes — the AI may misidentify items or misattribute them (artist, maker, brand, designer, origin, era). This is not an official valuation and should not be used for insurance, sale, tax, estate, legal, or lending purposes — or any decision requiring a certified appraisal. It is not an authoritative claim about any person, brand, or rights holder — do not share or rely on it as a factual statement about a third party. Always consult qualified professionals before making financial decisions.

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AI Identification

·Not independently authenticated·Verify before acting

American Brilliant Period Cut Glass Decanter

Antique Glassware / Collectibles

AI Estimated Value

·Not an official valuation·Verify before acting

$350.00 - $550.00

As of May 23, 2026

AI Item Analysis

·AI can make mistakes·Verify before acting
This is a tall, heavy lead crystal decanter featuring intricate geometric deep-cut patterns synonymous with the American Brilliant Period (ABP), roughly dating from 1876 to 1917. The item is crafted from high-clarity clear glass with a high refractive index, suggesting a high lead content. The body is teardrop or ovoid-shaped, tapering into a slender fluted neck with a multi-faceted rim. The primary decorative motif consists of large vesicas containing complex hobstar and fan patterns, separated by vertical miter cuts and cross-hatched diamond fields. The base appears to have a starburst cut pattern to provide stability and visual continuity. In terms of condition, the glass shows excellent clarity without significant clouding or 'sick' glass symptoms, though several small 'flea bite' chips are visible along the sharp edges of the miter cuts, which is common for authentic cut glass of this age. There is no visible maker's mark in the photograph, which is typical as many ABP pieces were only marked with acid stamps that wear away over time. The craftsmanship is of high quality, demonstrated by the precision of the interlocking geometric cuts and the overall brilliance of the light refraction.

AI Appraisal Report

·AI can make mistakes·Verify before acting
Based on my visual examination of this impressive American Brilliant Period (ABP) cut glass decanter, I find the piece to be a high-quality example of the 'Brilliant' era (1876-1917). The high refractive index and clarity indicate a superior lead content typical of renowned houses like Dorflinger, Libby, or Hawkes. The design—featuring intricate hobstars, deep miter cuts, and fan vesicas—is executed with the signature precision of hand-cut master craftsmanship. The presence of 'flea bites' on the sharp edges, while technically a condition flaw, actually serves as a positive indicator of the glass's age and authentic lead-crystal hardness. The current market for ABP glass has softened significantly since its peak in the 1990s, with values now stabilized for high-quality hollowware. Large, heavy decanters remain more desirable than smaller tableware. This specific piece’s value is bolstered by its complexity and clarity, though tempered by the lack of a visible acid-stamped signature and the minor edge wear. Please note that this appraisal is based on photographic evidence. A definitive authentication would require a physical inspection to verify the 'ring' of the glass (resonant frequency), precise weight, and a UV light test to check for the characteristic lime-green glow of authentic ABP era glass. To confirm a specific maker, I would need to scrutinize the stopper’s plug for matching identification numbers or look for microscopic remnants of an acid mark. Without provenance, this is valued as an 'attributed' high-quality period piece.

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