AI identification & appraisal estimate

Cushion cut reddish-pink gemstone

Submitted photo of Cushion cut reddish-pink gemstone
Photo submitted by the user — not generated by AI

User's notes

Umbalite garnet, 2.51 carats, cushion cut, 8.85 x 7.46 x 4.08mm, VVS, origin: tanzania - umba river, unheated and untreated

These notes were written by the person who submitted this item. Appraiser.AI has not verified them, and the AI's identification and estimate may rely on them.

AI Estimated Value

Not an official valuation

$450-$750

AI estimate as of September 28, 2026 · verify with a professional before acting

AI-Generated · Verify before acting

Everything on this page 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.

This analysis also relies on unverified notes provided by the user, which may be incomplete or inaccurate and could affect the result.

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AI Item Analysis

This item is a loose, faceted cushion-cut gemstone displaying a vibrant reddish-pink to purplish-red color profile. The stone features a mixed cutting style, combining a brilliant-cut crown with a stepped pavilion, which promotes significant internal light return and brilliance. The pavilion facets show clean junction lines and good optical symmetry through the table. Based purely on visual inspection of the photograph, no internal inclusions, fractures, or abrasions are readily apparent to the naked eye, indicating a high clarity level consistent with fine colored gemstone material, though microscopic analysis would be required to assess clarity grades fully. There are no visible hallmarks, inscriptions, or certifications captured in the image. The owner has provided additional context, identifying this specimen as an unheated and untreated umbalite garnet weighing 2.51 carats, with dimensions of 8.85 x 7.46 x 4.08mm, a VVS clarity assessment, and an origin in the Umba River region of Tanzania. It must be noted that all user-supplied claims regarding gemstone species, exact measurements, carat weight, clarity grade, geographic origin, and treatment status are unverified by physical examination and require professional gemological laboratory testing for confirmation.

AI Appraisal Report

Based on what I can see in the photograph, this loose, faceted cushion-cut gemstone displays a vibrant reddish-pink to purplish-red color profile with a mixed cutting style and clean visual clarity. However, I cannot verify gemstone species, exact measurements, carat weight, clarity grade, geographic origin, or treatment status from a photograph alone. Per user submission, the owner identifies this specimen as an unheated and untreated umbalite garnet weighing 2.51 carats, measuring 8.85 x 7.46 x 4.08mm, with a VVS clarity assessment and an origin in the Umba River region of Tanzania. My appraisal estimate of $450-$750 assumes the owner's identification is correct. Garnets exhibiting this desirable reddish-pink color palette and fine clarity command steady interest among collectors and jewelry designers seeking vibrant colored gemstones outside the traditional 'big three' stones. If physical and scientific testing reveals that the specimen is a different material, a synthetic, or subject to undisclosed treatments, the value would decrease significantly, potentially closer to commercial synthetic or common garnet values in the $50-$150 range. To confirm the identity, origin, and treatment status of this piece, professional gemological laboratory testing, microscopic examination, and in-person expert inspection would be required.

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