Use the code and get 40% off your first order at DIFF.
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Use code and get 40% off your first order at DIFF.
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Save 50% on every order across the entire DIFF eyewear collection, including all designer quality eyewear.
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Never miss cashback. Our free Chrome extension alerts you automatically at every partner store.
Save up to 75% on DIFF sale items while supplies last.
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Get stylish prescription frames for less with savings up to 70% off at DIFF today.
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Sale styles are reduced by as much as 75% across DIFF designer quality eyewear and the wider eyewear collection.
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Buy one pair of sunglasses and get another free across the DIFF designer quality eyewear collection.
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Grab a stylish pair of sunglasses and get a third one free when you buy two at DIFF.
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Enjoy half price savings on premium eyewear, blue light glasses, and more when you shop at DIFF.
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Shop DIFF and enjoy Buy 1 Get 1 50% Off on sale products today, while stocks last.
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Enjoy 40% off your first sunglasses or blue light glasses order, and feel good knowing that DIFF helps provide reading glasses to those in need.
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Sunglasses are now $35 across DIFF's designer quality eyewear collection, from classic frames to fashion sunglasses.
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Shop DIFF sale styles and save up to 39 percent on select items today for a new look.
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Get stylish prescription frames and lenses from DIFF for an amazing price of just $49, perfect for upgrading your look.
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Enjoy free shipping on all orders over $140 at DIFF and get your favorite styles delivered right to your door!
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Purchase and get free shipping on orders $135+ at DIFF.
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Buy 1 get 1 free selected sunglasses at DIFF.
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Sign Up to The Newsletter And Get 40% Off Your Order at DIFF.
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DIFF eyewear comes with a 40% off code for first time customers, but the brand is currently running several sitewide and category sales that may save you more depending on what you are buying. Check which offer gives you the biggest discount on your basket before you checkout.
First order with a code. If you are a first time customer, the 40% off first order code takes a straightforward percentage off your purchase, no minimum spend required. On a $100 order, for example, the code saves you $40 and brings your total to $60. The code cannot be combined with other offers, so you need to choose between it and any sitewide sales running at the same time.
Sitewide 50% off or buy 2 get 3 free. A flat 50% off sitewide sale is currently active across the entire DIFF collection. For most shoppers, this beats the first order code. On the same $100 order, 50% off takes you down to $50, saving $50. However, if you are buying at least two pairs of eyewear, the buy 2 get 3 free deal may beat both: buying exactly two frames and choosing three equally priced frames free means you get five frames at the price of two. On a $200 order for five similar frames at $40 each, buy 2 get 3 free means paying $80 for two and receiving three free, a total saving of $120. This only works when you are buying multiple pairs and they are close enough in price that the three free items have real value.
Up to 75% off on sale items. The biggest percentage sale currently running is up to 75% off sale products only. This applies only to items already marked down; you cannot stack it on top of the original price of full price stock. If the frame you want is on sale for $60, you might get it for as little as $15, but you will save less on sale items priced higher to begin with. The up to 70% off prescription frames and up to 70% off designer collaboration sales work the same way on their respective categories.
Sunglasses deals. If you are buying sunglasses only, buy 1 get 1 free or buy 2 get 3 free on sunglasses are available alongside the sitewide deals. The $35 flat price on all sunglasses selected styles is the simplest option if you wear a standard size and style. Buy 1 get 1 50% off on sale sunglasses is the best choice if the frames you want are already discounted.
Prescription frames and lenses for $49. A set deal for $49 is available on selected prescription frames and lenses, making this the best value for anyone needing a complete prescription pair.
First order without a code. If you miss the code window, a separate 40% off first order sale (no code) is available on sunglasses and blue light glasses only.
Free shipping thresholds. Free shipping applies to orders of $135 or more (one offer states $140; both are active). Smaller orders will incur a shipping cost not stated here.
Our records show the biggest code in the 12 months to October 2026 was 60% off in July 2026, so the current 40% off first order code is a decent offer but not the highest we have tracked. Sitewide sales at DIFF have reached up to 80% off in December 2025, so the current 50% sale sits in the middle of what the brand typically runs. Our team tested one DIFF code at checkout in the 12 months to October 2026 and confirmed the result with a screenshot.
To pick between the offers, compare the original prices and any discounts each one applies to your basket and go with whichever leaves the lower total. The first order code and the sitewide sales do not combine, so if you are eligible for both, calculate the final price under each and choose the one that costs less.
Here are some great tips & tricks for extra savings at DIFF:
DIFF accepts VISA, Mastercard, American Express, Discover Card, Amazon Pay, Apple Pay, Afterpay, and PayPal. Afterpay allows for payments to be split into 4 payments.
DIFF pack and ship most orders within 24-48 hours of you placing them. The DIFF warehouse is open Monday through Saturday and is closed all Sundays and National Holidays. You will receive an automated email with tracking information on the evening that your package is shipped.
Yes, In the USA they offer USPS Express 1-3 Day and UPS Next Day. Please note, that these services sometimes require a signature upon delivery. Internationally they offer DHL Express. This service varies from the next day to one week depending on location. Please account for customs/border delays when ordering. DHL requires a signature upon delivery.
If you need to update or cancel your order, please contact them immediately. They try to process orders very quickly, and once our warehouse has processed your order they can no longer make changes to or cancel your order. DIFF do not have the ability to add items to your order once it has been placed. Please place a new order with the items you want to purchase.
If you are not satisfied with your DIFF Eyewear, you can easily return or exchange them within 30 days of purchase for non-prescription products. Prescription products must be returned within 14 days of delivery for store credit. Returns must be unworn, in the state you received them, and in the original packaging. Returns will be processed within 2-3 weeks of receiving them. Please note that items purchased during a sale or from their sale page are not eligible for return or exchange.
If you are not satisfied with your DIFF Eyewear, you can easily return or exchange them within 30 days of purchase for non-prescription products. Prescription products must be returned within 14 days of delivery for store credit. Returns must be unworn, in the state you received them, and in the original packaging. Returns will be processed within 2-3 weeks of receiving them. Please note that items purchased during a sale or from their sale page are not eligible for return or exchange.
Email support@diffeyewear.com
Address 19701 Hamilton Ave., Suite 260 Torrance, CA 90502
