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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryIndustryJewelry & Precious Metal ManufacturingThusisAtelier für Schmuck Erna Sommerau GmbH
Atelier für Schmuck Erna Sommerau GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company "E. Sommerau - Atelier für Schmuck" is the manufacture and sale of individually crafted jewelry, particularly rings and jewelry pieces made of silver, gold, palladium and platinum, often complemented with precious stones. Additionally, the company offers watch servicing and repairs.

AI-generated
Offering

Products & services

Industry:Jewelry & Precious Metal Manufacturing
✓ Offered4
Custom-made jewellery
Individual jewellery pieces made of gold, silver or platinum; rings, chains, pendants and bracelets made to personal wishes, with advice from the idea to the finished piece.
Jewellery repairs
Expert and reliable repairs of jewellery items in the workshop, in addition to new manufacturing and personal jewellery service.
Watch servicing
Battery changes and watch strap changes for watches, as an additional service offered in-store with an integrated workshop.
Retail of jewellery and watches
Selected purchased jewellery items from various suppliers as well as watches from Aerowatch, Grovana and Boccia in different styles and price ranges.
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4.0/5

Atelier für Schmuck Erna Sommerau GmbH

Trust & reputation

ranQ Trust Score of Atelier für Schmuck Erna Sommerau GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Atelier für Schmuck Erna Sommerau GmbH scores 67.5 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.79.424%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.52.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.50.08%
Atelier für Schmuck Erna Sommerau GmbH scores 75.7 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.83.012%
  • 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%
Atelier für Schmuck Erna Sommerau GmbH scores 85.0 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).85.022%
Atelier für Schmuck Erna Sommerau GmbH scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Atelier für Schmuck Erna Sommerau GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 7 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Neudorfstrasse 18
7430 Thusis
Opening hours
Mon
Closed
Tue
08:30 - 12:00, 13:30 - 18:00
Wed
08:30 - 12:00, 13:30 - 18:00
Thu
Closed
Fri
08:30 - 12:00, 13:30 - 18:00
Sat
08:30 - 13:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-394.122.563
Founded
2017 · 9 years
Last commercial register change
April 27, 2017
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.88.06%
  • 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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