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Sgl Labs

SGL provides gemological courses for students from industry, trade, and academia.

Retail Luxury Goods and Jewelry
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Headquarters
London, England, United KingdomSource: RevenueBaseRetrieved October 13, 2026
Employee range
201 to 500Source: RevenueBaseRetrieved October 13, 2026
Founded
2007Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
13 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does Sgl Labs do?

SGL is co-headquartered in New York and London, with laboratories in several other cities across multiple countries.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

What the business offers

Services & capabilities.

Diamond grading and certification

SGL conducts stringent quality checks for diamond grading and certification across its laboratories worldwide.

Source: LinkedIn company description · Retrieved October 13, 2026

Gemological courses

SGL offers gemological courses to students from industry, trade, and academia.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

Share your recognition

Embeddable award for your website

BADGE PREVIEWSgl Labs listed #1 on Certified diamond sellers, September 18, 2026Open the published source list.
Sgl Labs

#1 Certified diamond sellers

Snapshot: September 18, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 18, 2026, October 8, 2026 and October 11, 2026. How the company lists are built.

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