Diamond Envelope Corporation can deliver an unparalleled selection of envelope products to fit the needs of our customers. 

Diamond Envelope Corporation can deliver an unparalleled selection of envelope products to fit the needs of our customers. 

Diamond Envelope Corporation is a leading manufacturer and converter of envelopes. Our ultimate goal is to provide every client with the best envelope products, impeccable quality, and personalized customer service. Our clientele ranges from financial services, advertising agencies, and insurance and medical institutions that use envelopes for statement fulfillment and advertising needs, as well as serving other non-direct marketing sectors of their business. 

Diamond Envelope Corporation offers a wide range of manufacturing capabilities and expertise, meaning that we can deliver an unrivaled selection of envelope products to fit the specifications of our customers. Each envelope is custom designed to create a positive and unique image for their mailer. 

Diamond Envelope Corporation produces billions of envelopes annually. These envelopes are used to conduct business transactions, market products, and services every day. Each envelope is custom designed to ensure quality and exceed the specifications of our customers.

Envelope Samples

Commercial & Official Envelopes

These envelopes are widely used for a variety of business and personal correspondence. The most popular business envelope in the USA is the standard #10 Envelope. 

Size Range:
3-1/2″ x 6″ to 5″ x 11-1/2″

Catalog Envelopes

Catalog envelopes are constructed with a center seam, making them more durable for mailing heavy-weight materials.  

Size Range:
8-3/4″ x 11-1/2″ to 11-1/2″ x 14-1/2″

A-Style Envelopes

This envelope style is designed with a side seam construction and contemporary square flap. They are most commonly used for announcements and invitations.

Size Range:
4-3/8″ x 5-3/4″ to ” x 9-1/2″

Coin Envelopes

A coin envelope is a small open-end envelope, usually with center seam construction, often used for small parts, jewelry, coins, etc.  

Size Range:
2-1/4″ x 3-1/2″ to 3-1/2″ x 6-1/2″

Standard Window Envelopes

The standard window’s size and position is the same for all commercial window envelopes, regardless of the size of the envelopes. It measures 4-1/2″ wide and 1-1/8″ deep. It is positioned 7/8″ from the left side of the envelope and 1/2″ from the bottom of the envelope. 

Specialty Envelopes

Bubble Envelopes

Adds a textural element to paper such as vertical, bubble engraving.

Trailing Edge Envelopes

Adds a dimensional element to paper.

Booklet/Welded Side Seam

Booklet envelopes are constructed with a side seam and open on the top of the envelope dimensions, making them suitable for automatic insertion machines and ideal for volume mailing. 

Size Range:
5-1/2″ x 8-1/8″ to 9-1/2″ x 12-5/8″


Printing Capabilities

Diamond Envelope uses enhanced flexo on all our flexo printing. For any outside print, we offer a range of 1 to 6 color processing. All of our equipment offers an inside security print unit as well. Please call or request a quote if you need 2 color inside printing as we do have a work-and-turn print unit.

Latex & Gum Capabilities

Diamond Envelope has multiple machines equipped for latex, peel & seal, and drop gum bar applications.

Windows & Cutting Capabilities

We offer over one thousand cutting dies available to meet customers needs, and with capabilities to manufacture multiple windows on the face and back.

Special Enhancements

Every piece of machinery can put a window on an envelope. Diamond Envelope is extremely efficient at manufacturing welded seam envelopes that are machine insertable. These can include a false bottom, if required. We also offer custom inline embossing patterns, enhanced flexo, tactile/sensory and trailing edge envelopes.

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