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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryIndustryJewelry & Precious Metal ManufacturingLa Chaux-De-FondsMADEMOISELLE O Sàrl
MADEMOISELLE O Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company "Mademoiselle O" is a Swiss bijouterie specializing in the manufacture of custom-made jewelry pieces, particularly bijoux, alliances, and watches. The core activity of the company is the creative design and production of jewelry pieces, taking into account ethical and ecological aspects.

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Offering

Products & services

Industry:Jewelry & Precious Metal Manufacturing
✓ Offered5
Custom Jewellery
Custom jewellery, one-of-a-kind pieces and reworks of antique jewellery; design, sketches and hand fabrication in the workshop.
Collectible Jewellery
Handcrafted collectible jewellery, including the Nu.e.s, Brut.e.s and Léopard lines ; necklaces, rings, bracelets and one-of-a-kind pieces.
Wedding & Engagement Rings
Wedding jewellery, engagements and wedding bands, with collections, semi-bespoke and ultra-bespoke depending on material, colour, dimensions and finish.
Semi-bespoke
Semi-bespoke for wedding bands and engagement rings ; choice of material, colour, dimensions, texture, engravings and finish.
Watchmaking
Horology support from concept to prototyping and product management; planning, management and coordination of launches through to market introduction.
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4.1/5

MADEMOISELLE O Sàrl

Trust & reputation

ranQ Trust Score of MADEMOISELLE O Sàrl: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

MADEMOISELLE O Sàrl scores 79.4 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
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.83.324%
  • 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.63.210%
  • 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.88.08%
MADEMOISELLE O Sàrl scores 61.5 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.50.012%
  • 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%
MADEMOISELLE O Sàrl 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%
MADEMOISELLE O Sàrl scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

MADEMOISELLE O Sàrl reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 11 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 11 reviews across all connected sources

Sources
GGoogle511
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Rue de la Balance 10
2300 La Chaux-De-Fonds
Opening hours
Mon
10:00 - 18:00
Tue
10:00 - 18:00
Wed
10:00 - 18:00
Thu
10:00 - 18:00
Fri
10:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-254.530.464
Founded
2023 · 3 years
Last commercial register change
October 16, 2023
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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