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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryRetail & CommerceWholesale - Watches & JewelryZurichKordiam Edelsteine, Jakubowitsch
Kordiam Edelsteine, Jakubowitsch Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of KORDIAM Jakubowitsch Diamonds is the trade in diamonds and diamond jewelry, particularly for resellers.

AI-generated
Offering

Products & services

Industry:Wholesale - Watches & Jewelry
✓ Offered4
Coloured diamonds
Coloured diamonds in various sizes, shapes and colour nuances; including round and fancy-shaped as well as treated coloured diamonds.
White diamonds
White diamonds in all quality grades and shapes; including round brilliants, oval, marquise, heart, princess, cushion and old cuts, partly with a GIA certificate from 0.30ct.
Special and fancy diamonds
Naat diamonds (Salt & Pepper), diamond roses, slices, special pairs, white fancy-shaped diamonds and old-cut diamonds for custom jewellery making.
Diamond jewellery
Diamond jewellery pieces such as rondels, spheres, stud earrings, rings, bracelets and necklaces; partly in 750 red and white gold, rhodium-plated or set with brilliants.
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Kordiam Edelsteine, Jakubowitsch

Trust & reputation

ranQ Trust Score of Kordiam Edelsteine, Jakubowitsch

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

Kordiam Edelsteine, Jakubowitsch 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%
Kordiam Edelsteine, Jakubowitsch 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%
Kordiam Edelsteine, Jakubowitsch 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%
Kordiam Edelsteine, Jakubowitsch 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.

Knowledge

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Location

Birmensdorferstrasse 191
8003 Zurich

At a glance

Legal form
Sole proprietorship
UID
CHE-105.660.121
Founded
2000 · 26 years
Last commercial register change
August 7, 2000
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.67.06%
  • 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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