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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryRetail & CommerceRetail - Watches & JewelryGenevaVERNAIN SA
VERNAIN SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Vernain SA is the trade in diamonds and precious stones, particularly as a diamantaire and gemmologist. The company offers services such as consulting, sales and possibly also the evaluation of diamonds and precious stones.

AI-generated
Offering

Products & services

Industry:Retail - Watches & Jewelry
✓ Offered6
Cut diamonds
Cut diamonds for jewellery and watchmaking, including mixed diamonds and GIA-certified solitaire diamonds from 0.30 ct.
Gemmological expertise
Gemmological expertise for insurance, inheritance and quality control, including assessment of the quality and authenticity of the stones.
Advice on buying and investing in diamonds
Advice for buying and investing in cut diamonds, with support in choosing the stone suited to the client’s needs.
Custom jewellery
Creation of made-to-measure jewellery, with design of custom pieces according to the client’s ideas, needs and preferences.
Buyback of vintage jewellery and cut diamonds
Buyback of vintage jewellery and cut diamonds, with rigorous and transparent valuation of the items offered for sale.
Responsible sourcing and ethical traceability
Sourcing of diamonds with guaranteed origin, batch checks to exclude synthetic diamonds, and compliance with the Kimberley Process and the ethical code.
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4.1/5

VERNAIN SA

Trust & reputation

ranQ Trust Score of VERNAIN SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

VERNAIN 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.
x
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%
VERNAIN SA scores 85.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • 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%
VERNAIN SA scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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%
VERNAIN SA scores 20.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

VERNAIN 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 October 2026.

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

Knowledge

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Location

Rue de la Fontaine 9
1204 Geneva

At a glance

Legal form
Corporation
UID
CHE-103.250.114
Founded
1985 · 41 years
Last commercial register change
December 9, 2022
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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