Get a valuation for your piece.
Upload a few photos for an instant AI estimate in CHF, then have it checked by real human eyes. Every submission is reviewed by a Winwin specialist, because a photo and a model can only see so much. For jewellery, watches, gemstones and objects of value.
Two ways to get a number
Instant AI estimate.
Upload photos, get an indicative range in CHF in seconds. A starting point, not a formal appraisal.
Expert valuation, human eyes.
A Winwin specialist reviews your piece and gives you a considered opinion. For an official appraisal, we examine it in person.
Try the AI valuation
A separate, lightweight app handles the upload and the model. Click below to launch it.
Launch AI valuation →This is an AI-generated estimate based on photos alone. It is purely indicative, can be wrong, and does not constitute a formal offer. Only a physical examination by a Winwin specialist results in an official appraisal.
Instant result
An estimate appears in seconds — no email, no waiting list.
Private by default
Photos are processed for the estimate only and not used for marketing.
Indicative only
It's an AI model, not a gemmologist. Treat the number as a starting point.
Get Your piece valuated by an expert
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