Gemmological analysis
Scientific certifications for precious stones and diamonds, attesting to authenticity and quality

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Style & Craft · Bergamo (BG)
Gemmological laboratory and goldsmithing in Bergamo for scientific appraisals and bespoke creations
Eccellenza Italianacertificata 2026–2027
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The place
In Bergamo, on via Giovanni Battista Moroni, Roberto Spagnolo brings together gemmological expertise and the goldsmith's art. The LGR laboratory carries out scientific analysis on diamonds and precious stones, certifying authenticity and value through professional instrumentation. The activity also includes the creation and valuation of jewellery, offering technical appraisals for private clients, collectors and industry professionals.
The workshop

Why you can trust it
LGR – ROBERTO SPAGNOLO LABORATORIO GEMMOLOGICO STIME E PERIZIE is a member of the Eccellenze Italiane network. The mark is registered in Italy and abroad: every certified business has a unique identifier, which can be checked at any time.
Roberto Spagnolo founded a laboratory in Bergamo that combines scientific gemmological analysis with goldsmithing tradition, offering certifications and bespoke creations.
Location
LGR – ROBERTO SPAGNOLO LABORATORIO GEMMOLOGICO STIME E PERIZIE is already on our map, with its own mark among the other certified businesses of the area: here you can look at it up close.
Enter the mapIn the making · The approach
Analysis of precious stones and jewellery using professional instrumentation to determine authenticity and characteristics
Application of recognised protocols to attest to the quality, value and conformity of precious materials
Drafting of detailed appraisals with complete technical reports for private clients, collectors and professionals
Services
Scientific certifications for precious stones and diamonds, attesting to authenticity and quality
Technical appraisals for sales, inheritance matters and insurance valuations
Creation and crafting of jewellery with artisan expertise and gemmological consultancy
The detail
Images
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