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AI identification is probabilistic and is not authentication. Inspect the original listing and item yourself before purchasing.

Photos

Listing

Title
Vintage sequins shoulder bag
Source
Poshmark
Seller's brand
Vintage
Category
Bags
Current bid
—
Buy-now price
$18.00
Shipping
—
Location
—
Ends
— (—)
Discovered
2026-09-16 19:16
Last seen
2026-09-20 02:20

View original auction →

Seller's description

Really good condition, sequins bag, the bag can be worn in different ways with the chain

AI analysis

Model / prompt
ensemble:openai:gpt-5.6-luna+meta:muse-spark-1.3-contributor (prompt v2)
Analyzed at
2026-09-16 23:48
Is handbag
97%
Coach probability
2% (possible, not confirmed)
Vintage probability
53%
Authenticity confidence
2%
Image quality
81%
Seller misidentification
3%
Coach score
0.15
Opportunity score
0.07
Deal score
0.05
Estimated era
unknown
Possible models
—

Evidence

POSITIVE
  • —
NEGATIVE
  • photo 4: interior shows a small sewn fabric label that does not visibly read COACH and appears to reference handmade production.
  • photos 1-3 and 6: bag is covered in multicolor sequins with a thin chain strap, unlike the leather, canvas, or recognized Coach construction shown in the reference models.
  • photo 4: dark synthetic-looking lining is visible; no Coach creed patch is present.
  • photos 1-6: no Coach wordmark, horse-and-carriage, leather hangtag, turnlock, or serial/style number is visible.
  • photo 1-3: body is sequin/bead textile with diagonal stripes, not glove-tanned leather
  • photo 4-5: black satin-like synthetic lining, not unlined suede
  • photo 4-5: interior fabric tag reads fashion import / MADE IN ..., not Coach creed
  • photo 1-2,6: thin gold-tone chain strap, no solid brass Coach hardware, no turnlock, no hangtag
  • photo 1-6: no COACH wordmark, carriage, creed patch or leather hangtag visible
MISSING INFORMATION
  • photo 4-5: the interior label is too small/blurry to transcribe confidently; request a straight-on close-up.
  • request clear photos of the zipper, chain attachments, label reverse, and all interior compartments.
  • seller-stated dimensions are approximately 8 inches wide, but height and depth are not provided.
AUTHENTICITY CONCERNS
  • ⚠ The visible construction is inconsistent with a classic vintage Coach leather handbag; it appears to be a generic sequined evening/shoulder bag rather than a Coach lookalike requiring authentication.

Observed features

creed present no
serial or style number present no
coach wordmark present no
turnlock present no
hangtag present no
creed text not_visible
serial or style number not_visible
hardware description photos 1-6: thin metallic chain shoulder strap and small metallic zipper hardware are visible; no Coach engraving is legible.
leather description photos 1-3 and 6: no leather is visible; exterior is textile covered with sewn sequins.
lining description photos 4-5: dark smooth synthetic-looking fabric lining is visible.
strap construction photos 1-2 and 6: long thin chain strap attached at the bag's upper sides; it appears suitable for shoulder or crossbody wear.
stitching description photos 3-5: textile edges and sequin rows are visible; stitching quality is not sufficiently detailed to assess.
Raw AI response (debug)
{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.02,
    "vintage_probability": 0.525,
    "authenticity_confidence": 0.015,
    "image_quality_score": 0.805,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.905,
    "recommended_max_bid": 8,
    "estimated_resale_low": 6.5,
    "estimated_resale_high": 20,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 4: interior shows a small sewn fabric label that does not visibly read COACH and appears to reference handmade production.",
        "photos 1-3 and 6: bag is covered in multicolor sequins with a thin chain strap, unlike the leather, canvas, or recognized Coach construction shown in the reference models.",
        "photo 4: dark synthetic-looking lining is visible; no Coach creed patch is present.",
        "photos 1-6: no Coach wordmark, horse-and-carriage, leather hangtag, turnlock, or serial\/style number is visible.",
        "photo 1-3: body is sequin\/bead textile with diagonal stripes, not glove-tanned leather",
        "photo 4-5: black satin-like synthetic lining, not unlined suede",
        "photo 4-5: interior fabric tag reads fashion import \/ MADE IN ..., not Coach creed",
        "photo 1-2,6: thin gold-tone chain strap, no solid brass Coach hardware, no turnlock, no hangtag",
        "photo 1-6: no COACH wordmark, carriage, creed patch or leather hangtag visible"
    ],
    "missing_information": [
        "photo 4-5: the interior label is too small\/blurry to transcribe confidently; request a straight-on close-up.",
        "request clear photos of the zipper, chain attachments, label reverse, and all interior compartments.",
        "seller-stated dimensions are approximately 8 inches wide, but height and depth are not provided."
    ],
    "authenticity_concerns": [
        "The visible construction is inconsistent with a classic vintage Coach leather handbag; it appears to be a generic sequined evening\/shoulder bag rather than a Coach lookalike requiring authentication."
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match because the bag is a small sequined rectangular evening bag with a chain strap and no visible Coach identifier.",
        "Condition appears Very Good overall from the visible exterior: sequins are largely present and the bag retains its shape, though the interior and attachment points are only partially shown.",
        "No Coach model fits: sequin evening-bag silhouette, beaded textile body, chain strap and satin lining are inconsistent with any Coach catalog style in \u00a74",
        "Interior tag in photo 4-5 identifies as fashion import, not Coach; no creed patch, wordmark, turnlock or glove-tanned leather present",
        "Condition: Very Good to Excellent for its type; sequins appear intact in photo 1-3, lining clean in photo 4-5"
    ],
    "estimated_era": "unknown",
    "observed_features": {
        "creed_present": false,
        "serial_or_style_number_present": false,
        "coach_wordmark_present": false,
        "turnlock_present": false,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "photos 1-6: thin metallic chain shoulder strap and small metallic zipper hardware are visible; no Coach engraving is legible.",
        "leather_description": "photos 1-3 and 6: no leather is visible; exterior is textile covered with sewn sequins.",
        "lining_description": "photos 4-5: dark smooth synthetic-looking fabric lining is visible.",
        "strap_construction": "photos 1-2 and 6: long thin chain strap attached at the bag's upper sides; it appears suitable for shoulder or crossbody wear.",
        "stitching_description": "photos 3-5: textile edges and sequin rows are visible; stitching quality is not sufficiently detailed to assess."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0027,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.65,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 4: interior shows a small sewn fabric label that does not visibly read COACH and appears to reference handmade production.",
                    "photos 1-3 and 6: bag is covered in multicolor sequins with a thin chain strap, unlike the leather, canvas, or recognized Coach construction shown in the reference models.",
                    "photo 4: dark synthetic-looking lining is visible; no Coach creed patch is present.",
                    "photos 1-6: no Coach wordmark, horse-and-carriage, leather hangtag, turnlock, or serial\/style number is visible."
                ],
                "missing_information": [
                    "photo 4-5: the interior label is too small\/blurry to transcribe confidently; request a straight-on close-up.",
                    "request clear photos of the zipper, chain attachments, label reverse, and all interior compartments.",
                    "seller-stated dimensions are approximately 8 inches wide, but height and depth are not provided."
                ],
                "authenticity_concerns": [
                    "The visible construction is inconsistent with a classic vintage Coach leather handbag; it appears to be a generic sequined evening\/shoulder bag rather than a Coach lookalike requiring authentication."
                ],
                "observed_features": {
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "serial_or_style_number_present": false,
                    "serial_or_style_number": "not_visible",
                    "coach_wordmark_present": false,
                    "turnlock_present": false,
                    "hangtag_present": false,
                    "hardware_description": "photos 1-6: thin metallic chain shoulder strap and small metallic zipper hardware are visible; no Coach engraving is legible.",
                    "leather_description": "photos 1-3 and 6: no leather is visible; exterior is textile covered with sewn sequins.",
                    "lining_description": "photos 4-5: dark smooth synthetic-looking fabric lining is visible.",
                    "strap_construction": "photos 1-2 and 6: long thin chain strap attached at the bag's upper sides; it appears suitable for shoulder or crossbody wear.",
                    "stitching_description": "photos 3-5: textile edges and sequin rows are visible; stitching quality is not sufficiently detailed to assess."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match because the bag is a small sequined rectangular evening bag with a chain strap and no visible Coach identifier.",
                    "Condition appears Very Good overall from the visible exterior: sequins are largely present and the bag retains its shape, though the interior and attachment points are only partially shown."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 8,
                "estimated_resale_low": 8,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.01,
                "coach_probability": 0.02,
                "confidence": 0.9,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 15,
                "estimated_resale_low": 5,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.95,
                "missing_information": [],
                "negative_evidence": [
                    "photo 1-3: body is sequin\/bead textile with diagonal stripes, not glove-tanned leather",
                    "photo 4-5: black satin-like synthetic lining, not unlined suede",
                    "photo 4-5: interior fabric tag reads fashion import \/ MADE IN ..., not Coach creed",
                    "photo 1-2,6: thin gold-tone chain strap, no solid brass Coach hardware, no turnlock, no hangtag",
                    "photo 1-6: no COACH wordmark, carriage, creed patch or leather hangtag visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "thin gold-tone metal chain shoulder strap; no turnlock, no solid brass hardware visible",
                    "leather_description": "no leather visible; exterior is black beaded textile with multicolor sequin diagonal stripes",
                    "lining_description": "black satin-like synthetic lining visible in photo 4-5",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible; beaded construction, no leather stitching visible",
                    "strap_construction": "thin metal chain shoulder strap attached at top sides",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: sequin evening-bag silhouette, beaded textile body, chain strap and satin lining are inconsistent with any Coach catalog style in \u00a74",
                    "Interior tag in photo 4-5 identifies as fashion import, not Coach; no creed patch, wordmark, turnlock or glove-tanned leather present",
                    "Condition: Very Good to Excellent for its type; sequins appear intact in photo 1-3, lining clean in photo 4-5"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.4
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17699,
            "output_tokens": 806,
            "total_tokens": 18505,
            "estimated_cost_usd": 0.009014
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18033,
            "output_tokens": 1247,
            "total_tokens": 19280,
            "estimated_cost_usd": 0.004604
        }
    ]
}

Valuation AI ESTIMATE

This is a model-generated estimate, not an observed market/sold price. Treat it as a rough guide only.

Estimated resale range
$6.50–$20.00
Suggested max bid
$8.00

Reference-image matches

Nearest-perceptual-hash comparison against a small curated library of known vintage Coach models (data/coach-reference/) -- a coarse mechanical signal, not authentication.

No reference matches yet.

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