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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryIndustryJewelry & Precious Metal ManufacturingFreiensteinAgentur Tatjana Grüninger
Agentur Tatjana Grüninger Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Agentur Tatjana Grüninger is the manufacture and sale of custom-made jewelry, including the selection and processing of precious stones, as well as the provision of services such as jewelry care, alterations and old gold purchasing.

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Offering

Products & services

Industry:Jewelry & Precious Metal Manufacturing
✓ Offered6
Custom-made jewellery
Individual custom-made jewellery, from the selected stone through the design to the finished wedding ring or a jewellery piece for special occasions.
Gemstones
Gemstones and diamonds, including emeralds, yellow, blue and cognac-coloured diamonds, rubies, sapphires, topaz, aquamarine, morganite and amethyst.
Jewellery care
Professional care for jewellery pieces, including refreshment and polishing, so that items shine again like new.
Alterations
Alteration service for jewellery, from modernising old pieces to implementing your own design ideas and restoring heirlooms.
Buying old gold
Buying old gold and platinum in various karat grades, with the option to sell or to have it converted into a new, custom-made jewellery piece.
White Diamonds Event
Event concept with staged occasions, presentation of gemstones and diamonds, as well as a supporting goldsmith and lifestyle presentation.
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Agentur Tatjana Grüninger

Trust & reputation

ranQ Trust Score of Agentur Tatjana Grüninger

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

Agentur Tatjana Grüninger 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%
Agentur Tatjana Grüninger scores 78.5 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%
Agentur Tatjana Grüninger scores 85.0 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).85.022%
Agentur Tatjana Grüninger 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

Riedhaldenbuckstrasse 10 c
8427 Freienstein

At a glance

Legal form
Sole proprietorship
UID
CHE-114.613.244
Founded
2008 · 18 years
Last commercial register change
June 19, 2013
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.
67.0
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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