Dia & Co promo codes
3 of 27 Dia & Co codes passed a checkout test. Each one lists what it covers and when it was last checked.
- Codes listed
- 27
- Verified
- 3
- Sitewide
- 13
- Last checked
- Oct 14, 2026
Verified codes
40% Off
Verified
40% Off Storewide (new Customers Only) at Dia & Co
- 40% off your order
- Works sitewide — no specific product required
- Applies to: storewide
- Excludes: newcustomers
30% Off
Verified
30% Off Select Items at Dia & Co
- 30% off your order
- Applies to: Select items
$5 Off
Verified
$5 Off Storewide at Dia & Co
- Works sitewide — no specific product required
- Applies to: storewide
Unverified codes
Listed as found; some may have ended40% Off
Not verified
40% Off Your Order
40% Off
Not verified
40% Off Summer Sale Items at Dia & Co
- 40% off your order
- Applies to: Select items
40% Off
Not verified
40% Off Sitewide
30% Off
Not verified
30% Off Sitewide
30% Off
Not verified
30% Off Select Styles Products
30% Off
Not verified
30% Off New Business Casual
30% Off
Not verified
30% Off Your First Order
30% Off
Not verified
30% Off Select Items at Dia & Co
- 30% off your order
- Applies to: Select items
30% Off
Not verified
30% Off Storewide at Dia & Co
- 30% off your order
- Works sitewide — no specific product required
- Applies to: storewide
30% Off
Not verified
30% Off Select Items at Dia & Co
- 30% off your order
- Applies to: Select items
30% Off
Not verified
30% Off Select Items at Dia & Co
- 30% off your order
- Applies to: Select items
30% Off
Not verified
30% Off Storewide at Dia & Co
- 30% off your order
- Works sitewide — no specific product required
- Applies to: storewide
30% Off
Not verified
30% Off Storewide at Dia & Co
- 30% off your order
- Works sitewide — no specific product required
- Applies to: storewide
30% Off
Not verified
30% Off Storewide at Dia & Co
- 30% off your order
- Works sitewide — no specific product required
- Applies to: storewide
30% Off
Not verified
30% Off Storewide at Dia & Co
- 30% off your order
- Works sitewide — no specific product required
- Applies to: storewide
25% Off
Not verified
25% Off Storewide (Minimum Order: $50) at Dia & Co
- 25% off your order
- Works sitewide — no specific product required
- Applies to: storewide
25% Off
Not verified
25% Off Storewide at Dia & Co
- 25% off your order
- Works sitewide — no specific product required
- Applies to: storewide
20% Off
Not verified
20% Off Dress at Dia & Co
- 20% off your order
- Applies to: Select items
20% Off
Not verified
20% Off Sale Items at Dia & Co
- 20% off your order
- Applies to: Select items
20% Off
Not verified
20% Off Your Purchase at Dia & Co
- 20% off your order
- Applies to: other
15% Off
Not verified
15% Off Summer Essentials
15% Off
Not verified
15% Off Storewide at Dia & Co
- 15% off your order
- Works sitewide — no specific product required
- Applies to: storewide
15% Off
Not verified
15% Off Storewide at Dia & Co
- 15% off your order
- Works sitewide — no specific product required
- Applies to: storewide
$10 Off
Not verified
$10 Off Leroy Perfect Skinny Jean at Dia & Co
- Applies to: Select items
How to use a Dia & Co code
Show and copy the code
Start with a verified code. The code opens in a new tab and this tab continues to Dia & Co.
Fill your bag at Dia & Co
Add the items the code applies to. Sale items and some brands are often excluded.
Paste it at checkout
Enter the code in the promo field before you pay. If the total does not change, try the next code.
Questions about Dia & Co codes
Does Dia & Co have a working promo code right now?
Yes. 3 of the 27 Dia & Co codes listed here passed a checkout test, most recently on October 14, 2026.
What is the best Dia & Co promo code today?
The strongest offer we have on file is “40% Off Storewide (new Customers Only) at Dia & Co”, which is verified.
Do Dia & Co codes work on everything?
13 of the listed codes are described as sitewide. The rest are limited to selected items, a minimum spend or new customers; each code lists its terms where they are known.
How do I use a Dia & Co promo code?
Select “Show code” on this page and copy the code, add your items to the bag at Dia & Co, and paste the code into the promo or discount field at checkout before you pay. The order total should update straight away; if it does not, the code does not apply to your basket.
Why did my Dia & Co code not work?
The usual reasons are an expired code, sale items that are excluded, a minimum spend that has not been reached, or a code limited to first orders. Codes marked “Verified” were accepted at checkout on the date shown; unverified codes are listed as found and may already have ended.
Codes are collected from public sources and re-checked on a rolling schedule; retailers can end an offer at any time. InfluencerRate may earn a commission when you shop through links on this page.