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

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. For more detailed information regarding envelope styles, sizes, and measurements, please see below. 


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"


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" 


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"


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

6" x 9-1/2"


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"


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. 

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