Diam Corks

Diam Corks

Wine Corks & Bottle Corks
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Technical Corks "Diam"

Diam is a technological closure with a patented composition, which is manufactured from cork and treated by the patented DIAMANT process. Validated by several worldwide independent laboratories, the DIAMANT process uses super-critical CO2 to eradicate 2, 4, 6 – trichloroanisole (TCA) and 150 other compounds. Each Diam cork is guaranteed to have no TCA (below the detectable TCA ≤ 0.3 ng/l).

Diam offers a clean and consistent product where the cork is sensorial neutral. Diam offers different choices ranging from Diam 2, Diam 3, Diam 5, Diam 10, and the new Diam 30.

Recently Diam introduced Origine by DIAM®, a new sustainable cork made of natural ingredients. With major technological and environmental advancements, Origine by Diam® offers a natural sealing solution while maintaining its proven reliability of Diam Bouchage in terms of guaranteed no detectable TCA and consistency performance. Origine by Diam® corks are made from 100% organic polyols and are emulsified with natural beeswax. The beeswax used keeps the corks watertight, protecting the wine against any capillary migration and protecting the integrity of the cork elasticity. Origine by Diam® are currently available in Diam 10 and Diam 30 for still wines.

In addition to Diam corks for still wine, Diam Bouchage also offers Mytik corks for sparkling wines, REF corks for beers, and Altop (Bar Tops) for spirits, wines, and olive oil.

Diam products are now available for online order at www.G3order.com

  • Still wine corks (Diam)
  • Sparkling wine corks (Mytik)
  • Beer bottle corks
  • Bar tops (Altop)

For the North American market, G3 is the exclusive distributor of the Diam portfolio of products. We print and finish Diam closures at the Modesto plant. We are proud to announce that our manufacturer for Diam corks now meets the world's most stringent environmental, ethical, and economic sourcing standards with Forest Stewardship Council® Chain-of-Custody (FSC® CoC) certification. Diam FSC® certified corks can be produced on request.

FSC Logo

FSC® is an independent, non-governmental, not for profit organization established to promote the responsible management of the world’s forests.

G3 Enterprises, Closure Division FSC® Certificate

Visit www.FSC.org for more information.

To learn more about Diam products, visit the company's website:
Visit Diam website »



Diam Video
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."

Click here to see what media and winemakers have said about Diam.

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