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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryJewelry & Precious Metal ManufacturingPfäffikon SzGiselle Willner AG
Giselle Willner AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Giselle is the manufacture and sale of high-quality jewelry, particularly diamond jewelry, as well as the creation of individual pieces of jewelry tailored to customer specifications. The company operates its own manufactory in Zurich and also collaborates with selected family-owned manufactories in Europe.

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Products & services

Industry:Jewelry & Precious Metal Manufacturing
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Giselle Willner AG

Retail - Watches & Jewelry
✓ Offered9
Engagement rings
Engagement rings in various designs, including pavé, oval, emerald and signature settings; sometimes available as made-to-order pieces or with advice.
Wedding rings
Wedding rings for her and him, including eternity rings and ring sets; with selection, advice and various collections for the wedding day.
Custom-made jewellery
Custom-made jewellery from the first design through stone selection to hand-crafted implementation in the workshop in Zurich.
Fine Jewelry
Fine jewellery with rings, bracelets, necklaces, earrings, charms as well as jewellery for babies and children; plus new collections and bestsellers.
Pinky rings
Pinky rings in different styles, including signet, eternity and diamond models; listed as a standalone collection with multiple products.
Personalised jewellery
Personalised jewellery with engravings and customised pieces; complemented by the bespoke jewellery service.
Gift jewellery
Jewellery and gifts for special occasions such as birth, baptism, starting school, First Communion, graduation, wedding, Valentine’s Day and Mother’s Day.
Jewellery repair and goldsmith service
Care and repair of jewellery as well as goldsmith services; plus support with choosing the right ring size.
Consultation appointments
Virtual and in-person consultation appointments in Zurich, including non-binding booking of appointments and advice on jewellery and diamonds.
Trust & reputation

ranQ Trust Score of Giselle Willner AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

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Data basis 54% · As of October 2026

Giselle Willner AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Giselle Willner AG scores 72.8 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.70.212%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Giselle Willner AG scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).83.322%
Giselle Willner AG scores 8.9 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.8.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Giselle Willner AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Zentrum Staldenbach 7
8808 Pfäffikon Sz

At a glance

Legal form
Corporation
UID
CHE-227.324.519
Founded
2020 · 6 years
Last commercial register change
January 21, 2025
Employees
1 to 10
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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