"You say Diam, I say yes!"
"You say Diam, I say yes!"


"Les coups de cœur Diam"

Discover Diam’s selection on the radio show In Vino on Sud Radio.

RDV DIAM Roussillon et Val de Loire

Un mois de juin exceptionnel pour nos RDV Diam sur le thème du « Consommateur français face au vin bio ».

Premium Tasting – CHILI

Depuis 3 ans, Diam est le partenaire privilégié de l’évènement le plus attendu de la profession en Amérique Latine.

‘Nuit du millésime’ in Corse - FRANCE

On the 7th June our teams were in Bastia to present our Corsican cork closures to the winegrowers.

Desafio Federal 2019 - ARGENTINA

Two days of conferences and tastings for specialist consumers, the press and Argentinean sommeliers.

Jornada DIAM: les markets places - ESPAGNE

Cette année, la traditionnelle Jornada Diam invitait en exclusivité les adhérents du Grupo Rioja pour parler des plateformes de vente en ligne.

R&D project co-financed by ICEX

The R&D Department at Diam Corchos (Spain) is working on the development of a prototype to improve the performance of its TCA extraction equipment.

Opening of the Tre Secoli Cellar - ITALY

A long-standing partner of the Tre Secoli cellar, Diam was naturally present at the opening of their new infrastructure.

VDP exhibition (Verband deutscher Prädikatsweingüter) - Germany

On the 28 th and 29 th of April, the annual VDP exhibition was held in Mainz, Germany.

You say Diam, I say yes!

A few days ago, our ‘You say Diam, I say yes!’ campaign celebrated its first birthday. The perfect opportunity for us to unveil our very latest video produced by the Quai des Lunes agency.

SupAgro Wine Challenge – Montpellier

Diam Bouchage is a partner of the first edition of this grandiose tasting competition.

Wine Conversation - USA

This year was the 6th edition of Wine Conversations, an event organized by Diam Bouchage and G3 that is a firm-favourite with professionals in the sector.

Diam is on Instagram!

Join us on Instagram: @diam.cork

Wine Art Exhibition – Belgrade

A successful 2nd edition for this prestigious event.

3ème Congreso International del Rosado - Espagne

Diam Bouchage partner of the event.

Unified Wine & Grape Symposium - California

Diam and G3 were there to unveil the latest addition to the Origine range.

Spain - La Semana Vitivinícola

Impacto del cierre en el envejecimiento de los vinos en botella

RDV Diam

A very timely topic for this new edition of the Diam Rendez-Vous.

The Revue du Vin de France evening - Paris

Diam presented the innovation prize to Michel Drappier.

Bordeaux Tasting

An undeniable success for the 7th edition of Bordeaux Tasting!

WINovation Awards

One more award for Origine by Diam!

Vinitech 2018

As every two years, the Diam Bouchage teams welcomed their customers to their stand during the 3-day show, held the 20th-22nd November 2018 at the Parc des Expositions in Bordeaux.

Lyon Tasting

Great success for the second edition of the event organized by Terre de Vins.

Reportage Midi en France - France 3

Dans les Pyrénées-Orientales, les bouchons innovent

Bruno de Saizieu - Europe 1

Bruno de Saizieu invité dans l'émission "La France qui bouge" sur Europe 1

French American Business Awards

A gold Award for Oeneo Group !

“You say Diam, I say Yes!”

Diam Bouchage launches its new advertising campaign

WILLAMETTE - The Pinot Noir Auction

Great success for Pinot Noir in Oregon !

8th Jornada DIAM

The 8th edition on the theme of sustainable production in Spain.

FRANCE - Oenologues de France

Développement d’un bouchon bio-sourcé : « Origine© by Diam »

FRANCE - Terre de vins

[ENTRETIEN] Olivier Bernard : « il faut qu’on ait tous envie de mettre la marque Bordeaux »

USA - Grape Collective

California's David Ramey Understands That It's All About Making Delicious Wine


DIAM and the Triumph of Empiricism

Best of 2018: glowing testimonials from our clients

Thank you all for your loyalty and the trust you place in us!

Grands Crus Tasting in England

A tasting of the colours of Champagne and Burgundy.


L'appréhension du vin bouchonné s'éloigne

USA - Wines and Vines

Ensure Wine Quality and Path to Market


DIAM CORK - the end of corked wine

5th edition of Wine Conversations

An event that attracted the interest of many winemakers.

2nd Congress of Rosé in Spain

Conferences and tastings of a very high level.

2ème Weekend du Chêne liège dans le Var

L’opportunité pour faire connaitre au grand public les enjeux de l’économie du liège et le travail du bois.


Bruno De Saizieu, Business Director of DIAM Cork presents technical DIAM corks on TV7


DIAM corks ensuring our rosés stay purely delicious

Wine Art Exhibition in Belgrade (Serbia)

Diam Bouchage alongside Serbian winemakers for a high-end exhibition.

Master Blenders 2018 in Mendoza Argentina

An innovative initiative supported by Diam Bouchage!

UK - The Finest Bubble

Technological Corks: What’s The Big Deal?


How Diam Is Advancing the Wine Closure Market ?

Pinot Noir Celebration in South Africa

2 days of celebration at Hemel-en-Aarde in honour of Pinot Noir

España - La semana vitivinicola

Diam Bouchage, la innovación al servicio de la naturaleza

The Revue du Vin de France Evening - Men of the Year

Diam Bouchage presented the prize of innovation to the Domaine de la Colombette.


Five Decades of Burgundy with Dominique Lafon


Reinventing Cork

2017 in photos!

Discover in photos all the events in which Diam participated

FRANCE - Reportage France 3

Céret, l'innovation au coeur du succès des bouchons DIAM

RDV DIAM: The French consumer and ORGANIC products

A particularly topical theme for the 11th edition of Rendez-Vous Diam

Origine by Diam, medallist at SITEVI INNOVATION AWARDS 2017

This month, Origine by Diam was awarded a medal at the 2017 internationally renowned competition - the SITEVI Innovation Awards.

Oeneo evening at Domaine des Grands Chais

During the Sitevi Salon, the Oeneo Group invited its customers to navigate the islands.

100% Champagne evening

Tasting of champagne 100% Pinot Noir, 100% Pinot Meunier and 100% Chardonnay

Winemakers sub40

Diam Bouchage was in Mendoza to reward the work of young Argentinean oenologists.

USA - Huffington Post

How Technology Makes Life-and Wine-More Satisfying


El tapón Origine de la empresa Diam Bouchage, total seguridad para vinos

Origine by Diam in South America

Official launch of our new eco-friendly closure in Argentina and Chile

Sustainable development initiatives

Since its creation, Diam Bouchage has been committed to sustainable development initiatives. Let's discover some of them in this video.

Full Circle BevCon - Trade & Media Grand Tasting (USA)

Evan Goldstein and Doug Frost assembled 600 people for a blind tasting.

UK - Jancis Robinson - More on Diam

"You might like to know a bit more about my visit to the producers of Diam technical corks"

Origine by Diam, innovation at the service of Nature

Twelve years after launching the DIAMANT® technological process, Diam Bouchage once again revolutionises the wine world with a major technological breakthrough.

UK - DRINK BUSINESS Origine by Diam

Diam Bouchage Introduces Origine® by Diam a New, Technologically Advanced Sustainable Cork

Eric Perrin - Château Carbonnieux (France)

“We chose DIAM to ensure that all the work that is carried out from the initial stages is protected so that we can confidently pass the results of our work to our customer’s table.”

Olivier Bernard - Domaine de Chevalier (France)

"Now we have DIAM who are revolutionising the closure! [...] In my opinion, 90% of Bordeaux wines should today be sealed with these so-called technical closures."

FRANCE - Vitisphere - Origine by Diam

Diam présente un nouveau bouchon écoresponsable

Diam, the preferred closure for reducing SO2 levels in wine

The characteristics of Diam closures ensure their effectiveness in reducing sulphite levels in wine.

Underwater ageing study in the Canary Islands

Diam corked wines have shown very good results

FRANCE - Forbes - To cork or not to cork

Fine Wine Producers debate to Cork or not To Cork

FRANCE - Revue des Œnologues n°161 - Technical corks

Benefits of cork-based technical closures for the aging of Burgundy wines

UK - Jamie Goode's Wine Blog

Domaine Leflaive's switch to DIAM

Ludgar Veit - Weingut Ludger Veit (Germany)

"Our bottled wine is clean, clear and magnificent. The taste of the wine also remains the same several years after the bottling."

Alexander Heer - Montana Wines (Germany)

“The results, since we started using Diam closures, are homogeneous bottles, improved sealing and product safety.”

FRANCE - Revue des Œnologues n°157 - “varietal thiol”

Aging of a white wine of the “varietal thiol” type as a function of different oxygen contributions via cork closures and by micro-oxygenation

Best of 2012: glowing testimonials from our clients

Thank you all for your loyalty and the trust you place in us!

Juan Carlos Sancha : Winemaker (Spain)

« Compared to other stopper systems, Diam win again in that they still use cork ».

Pablo del Villar - Bga Hnos del Villar (Spain)

« The majority of our customers share our opinion that Diam offer one of the best sealing systems available on the market. »

Cédric Thiebault - Besserat Bellefon (France)

« We were immediately drawn to this new product which has really revolutionised the world of cork. »

François Domi : Billecart Salmon (France)

« It's the respect for the wine purity which made us choose Mytik. »

Pierre-Henry Gagey : Louis Jadot (France)

« One of the reasons we like Diam, it is because it's cork. »

Michel Rolland : winemaker consultant (France)

"We seek out the most neutral materials possible. I think Diam stoppers represent a great technological breakthrough."

Stéphane Toutondji : winemaker consultant (France)

« we can adapt our techniques and retain control throughout the whole maturing and ageing process. »

Chiara Soldati : Owner of La Scolca (Italy)

« I consider Diam and Mytik to be products of great charm and pleasing to the eye. »

Marco DiGuilio : Winemaker of Vintage Wine Estates (USA)

« It is last waste, more efficiency and Retailers or retaurants are actualy more likely to buy a bottle of wine from me if they know that it's gonna be with Diam closure »

Paolo Bisol : Owner of Ruggeri (Italy)

"Mytik certainly is the most sucessful of innovations"

Lucy Cléments : Winemaker de Sainsbury’s Supermarkets (England)

« Mytik is the perfect closure for Sparkling ! »

Daniel Pi : Chief Winemaker of Trapiche, Peñaflor Group (Argentina)

« The wine reaches the consumer in perfect condition. »

Mariano Di Paola : Winemaker of Bodega La Rural (Argentina)

"We discovered the Diam cork : the wine was impeccable and the fruity flavours had been perfectly preserved"

Patrick Jestin : CEO of CVBG Dourthe Kressmann (France)

« The Diam cork was most satisfactory in terms of preserving freshness and purity of aromas »

FRANCE - Revue des Œnologues n°142 - supercritical CO2

Extraction of MDMP via supercritical CO2 : Application to cork

FRANCE - Revue des Œnologues n°133 - TCA

Migration of 2,4,6-TCA in still wines

FRANCE - Revue des Œnologues n°125 - Diam cork

Comparative study of the Diam cork closure with other low TCA content closures.

FRANCE - Revue des Œnologues n°120 - DIAMANT® process

Impact of the Diamant® process on the organoleptic characteristics of cork powder