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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryIndustryWatch manufacturerLa Chaux-De-FondsGil Sertissage SA
Gil Sertissage SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gil Sertissage SA is a specialist in sertissage, the art of setting precious stones and pearls in jewelry and watches. The company's core activity encompasses the manufacture and distribution of jewelry and watches featuring precious stones and pearls, with a focus on the use of traditional materials such as precious metals and modern materials like ceramic and carbon. The company places great emphasis on sustainability, transparency, and social responsibility, and is a member of the Responsible Jewellery Council (RJC).

AI-generated
Offering

Products & services

Industry:Watch manufacturer
✓ Offered3
Gem setting
Gem setting of diamonds and precious stones on watches and jewellery components, including precious metals, stainless steel, carbon, ceramic, composite materials and sapphire.
Supply of traceable diamonds and gemstones
Supply of diamonds and precious stones with guaranteed traceability, documentation of transactions and the stone’s complete history in an unfalsifiable blockchain format.
Responsible supply chain
Implementation of a responsible sourcing policy for diamonds, coloured stones, gold, silver and platinum group metals, according to the OECD five-step guidance.
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4.1/5

Gil Sertissage SA

Trust & reputation

ranQ Trust Score of Gil Sertissage SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Gil Sertissage SA 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%
Gil Sertissage SA scores 88.3 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.97.712%
  • 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.70.07%
Gil Sertissage SA 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%
Gil Sertissage SA scores 13.7 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 35.13.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gil Sertissage SA reaches a ranQ Trust Score of 4.1 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 November 2026.

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

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Location

Rue du Pont 14
2300 La Chaux-De-Fonds

At a glance

Legal form
Corporation
UID
CHE-142.304.475
Founded
2012 · 14 years
Last commercial register change
March 4, 2026
Employees
11 to 20
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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