Blue Nile Promo Codes — 50% Off

Students receive 15% off regular-price jewelry by verifying through UNiDAYS. Teachers and trade-school students also qualify. The discount excludes sale merchandise and custom pieces.

Shipping is free on every order. Spend $500 or more and your package arrives overnight; below $500 it takes two days. Insurance and signature confirmation come standard.

Returns are accepted within 30 days if the piece is unworn and in its original state. Blue Nile covers return postage and permits two free returns per customer each year.

The Diamond Price Match Guarantee applies to certified loose stones. Find an identical GIA-graded diamond cheaper at an authorized competitor, and Blue Nile matches it within 48 hours.

In "My Cart," paste your code into the promo box and click "Apply." Your order summary will reflect the discount if the code is active and your cart meets requirements. Right now code ...CQRP takes $50 off orders $500+, while ...0NBY gives $20 off purchases of $50 or more.

Trade any Blue Nile diamond for full purchase credit toward a replacement stone priced at least double the original. Eligible stones must be GIA or IGI graded, undamaged, and accompanied by their certificate.

Military members, veterans, first responders, and healthcare workers get 15% off regular-price jewelry via ID.me. The discount works on most categories but cannot be combined with other codes.

Orders $500 and up arrive the next business day; smaller orders take two days. International deliveries land in 2–5 business days, though customs may extend that window. All shipments include insurance at no extra cost.

Bank wire payment earns a 1.5% discount compared to credit card. On a high-value ring, that difference can reach several hundred dollars.

Engraved, personalized, custom, or resized jewelry cannot be returned. Diamond Upgrade transactions and Clear the Vault clearance pieces are also final. Everything else qualifies for a 30-day return if unworn.