Company lists · Data refreshed September 2026

Top 21 Diamond wholesalers based in Italy

RevenueBase identified 198 diamond wholesalers headquartered in Italy as of September 2026 and tracks 1,228 professional contacts across them, including 112 with verified work emails. Valenza is the largest hub.

This list covers diamond wholesalers headquartered in Italy, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
198Companies
1,228Contacts tracked
112Verified emails
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The 21 largest diamond wholesalers based in Italy

Ranked by team size
Top 21 of 198 diamond wholesalers based in Italy, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to diamond wholesalers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceValenza (al), ItalyHQ checked Sep 16, 2026501-1,000344 contacts →

Partial evidence

“Damiani Group was founded in 1924 in Valenza, homeland of the best Italian jewelry tradition, thanks to Enrico Grassi, who began designing and creating jewels with diamonds: small…”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceValenza, ItalyHQ checked Sep 16, 202611-5028 contacts →

Indirect evidence

“RASELLI FRANCO SPA is a luxury goods & jewelry company based out of ZONA ARTIGIANALE D 3 2, Valenza, Piedmont, Italy.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceMilan, ItalyHQ checked Sep 16, 202611-5026 contacts →

Indirect evidence

“Brand di gioielli classici artigianali made in Italy, realizzati con diamanti e pietre preziose naturali, disponibili nelle migliori gioiellerie.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceRiccione, ItalyHQ checked Sep 16, 202611-5018 contacts →

Indirect evidence

“BARTORELLI GIOIELLERIE: PREZIOSA TRADIZIONE DAL 1882.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceValenza, ItalyHQ checked Sep 16, 20261-1018 contacts →

Indirect evidence

“Siamo impresa innovativa nel settore b2b della gioielleria preziosa.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceMilan, ItalyHQ checked Sep 16, 202611-5013 contacts →

Partial evidence

“Auctentic is a global company specializing in the brokering and evaluation of second-hand luxury diamonds, gemstones, and vintage watches.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceMilano, ItalyHQ checked Sep 16, 202611-509 contacts →

Indirect evidence

“Qualità, innovazione, professionalità, soddisfazione del cliente: questi sono gli elementi che contraddistinguono la Società Osigem S.r.l, azienda milanese che da oltre trentanni…”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidencePadova, ItalyHQ checked Sep 16, 202611-508 contacts →

Indirect evidence

“OUR ROOTS The company Roberto Callegari was born in 1909 in Padua, Italy.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceBiella, ItalyHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

“Orologi, gioielli e diamanti per far brillare ogni desiderio: la vostra soddisfazione è la scintilla preziosa che muove il nostro lavoro.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceMilano Mi, ItalyHQ checked Sep 16, 20261-106 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceBari, ItalyHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

“Azienda specializzata dal 1850 nella vendita al dettaglio di gioielli, orologi, perle, pietre preziose, icone russe e argenti.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceVerona, ItalyHQ checked Sep 16, 202611-505 contacts →

Partial evidence

“Micro Diamonds for your Creations DiamArt makes surfaces with the most precious of stones - the diamond - helping brands and designers to create unique products using this…”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceMilano, ItalyHQ checked Sep 16, 202611-505 contacts →

Indirect evidence

“Diamitaly S.r.l.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceQuerceta, ItalyHQ checked Sep 16, 202611-505 contacts →

Indirect evidence

“Produzione e vendita di utensili diamantati”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceBussolengo, ItalyHQ checked Sep 16, 202611-503 contacts →

Indirect evidence

“Advanced Analytical Instruments”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceVerona, ItalyHQ checked Sep 16, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidencePadova, ItalyHQ checked Sep 16, 202611-502 contacts →

Indirect evidence

“Quality is a certified RJC supplier of precious stones for the B2B sector.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceValenza, ItalyHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

“Valenza, 2001: da vent'anni nel settore del commercio di diamanti all'ingrosso, abbiamo fatto della nostra passione un preziosissimo mestiere.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceModena, ItalyHQ checked Sep 16, 202611-502 contacts →

Indirect evidence

“Un punto di riferimento nel settore con radici antiche e consolidate.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceArezzo, ItalyHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

“18carati è il punto di riferimento per chi ama dare e ricevere regali preziosi.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceCreazzo, ItalyHQ checked Sep 16, 202651-2001 contacts →

Indirect evidence

“Commercio all ingrosso di oggetti preziosi ed affini dall 1/07/1991 lavora- zione di oggetti preziosi del tipo: gioielleria in oro con perle e diamanti dal 17/09/1996.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 21 of 198 diamond wholesalers based in Italy

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Diamond wholesalers based in Italy at a glance

As of Sep 16, 2026
9.1%Verified-email coverage
6.2Average contacts per company
1-10Median size (employees)
12.1%Largest-city concentration · Valenza
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
110
11-50
72
51-200
7
201-500
4
501-1,000
1

Email recency for this list is measured worldwide rather than for Italy, so it is reported there. Company counts and contact totals on this page are exact for Italy, over 198 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among diamond wholesalers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Italy whose own description of what they do matches “diamond wholesalers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names diamond wholesalers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among diamond wholesalers, and records with no verified work email. Companies headquartered outside Italy are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 112 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names diamond wholesalers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many diamond wholesalers are there based in Italy?

RevenueBase identified 198 diamond wholesalers headquartered in Italy as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Damiani Group, headquartered in Valenza, tops this list with the largest team on record.

Which city has the most diamond wholesalers?

Valenza leads with 24 headquartered companies, followed by Milano (16) and Roma (14).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 112 verified decision-maker contacts tracked across these 198 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.