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

Testimonials from our customers around the world


Best of 2018: glowing testimonials from our clients

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

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."

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.”

Maxime Barmès - Domaine Barmès Buecher (France)

"Since 2009, all of our wines, including our Grand Crus are sealed with DIAM. The low permeability of Diam closures preserves S02."

Hubert Bouteiller : Winegrower - Honorary Chairman of the CIVB (France)

“Diam responds with a guarantee of quality and security to the problems facing the wine closure. […] it is the tradition that is developing and becoming the tradition of the future.”

Demei Li : Consultant winemaker (China)

"The Chinese wine importers that I know love Diam corks quality."

Best of 2012: glowing testimonials from our clients

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

Margarethe Chapelle (France)

« Diam is the only cork I know that has no impact, which remains completely neutral to the wine. »

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. »

S.Clifton & G. Brewer : Brewer & Clifton Winery (USA)

« Diamant® process is one of the most impressive processes I've witnessed, in any part of the wine industry. »

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 »

Brett Jackson : Chief Winemaker de Viña Valdivieso (Chili)

« We will obtained exactly the same result from the 1st to the 100 000th cork. »