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

About the company

Lavinia GmbH is a diamond retailer and consultancy operated by a husband-and-wife team whose principals hold GIA Applied Jewelry Professional credentials. Services include loose diamonds (GIA reports for stones over 0.25 carats), high-definition stone videos, conflict-free and optional CanadaMark diamonds, bespoke Swiss-made jewellery and engagement ring design, and diamond investment consulting; production takes place in Central Switzerland.

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Products & services

Industry:Jewelry & Precious Metal ManufacturingRetail - Watches & Jewelry
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Lavinia GmbH

✓ Offered3
Bespoke jewellery
High quality bespoke Swiss Made Diamond Jewellery, individually crafted engagement rings, bespoke settings in gold and platinum.
Loose diamonds
Loose diamonds graded by GIA, conflict free diamonds, optional Canada Mark diamonds, with high-definition video and laboratory reports for stones over 0.25 carats.
Diamond investment consulting
Diamond investment consulting, alternative investment strategies for customers considering diamonds as a long-term investment.
Trust & reputation

ranQ Trust Score of Lavinia GmbH

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

Lavinia GmbH 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%
Lavinia GmbH scores 72.3 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.75.012%
  • 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%
Lavinia GmbH 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%
Lavinia GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

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Location

Poststrasse 30
6300 Zug

At a glance

Legal form
Limited Liability Company
UID
CHE-405.555.939
Founded
2019 · 7 years
Last commercial register change
August 22, 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.
88.0
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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