Frequently Asked Questions
Everything you need to know about shopping with DiagMart
How long does shipping take?
Standard shipping typically takes 3-5 business days within the continental US, while international orders may take 7-14 business days depending on the destination.
What is your return policy?
We offer a 30-day return window for all unworn apparel with original tags attached. Simply visit our returns portal to generate a prepaid shipping label.
How do I know which size to choose?
Each product page features a detailed size guide with specific measurements. If you are between sizes, we generally recommend sizing up for a more comfortable fit.
Are your materials sustainably sourced?
At DiagMart, we prioritize ethical fashion. 80% of our current collection is made from organic cotton, recycled polyester, or sustainable linen.
What payment methods do you accept?
We accept all major credit cards (Visa, Mastercard, Amex), PayPal, Apple Pay, and buy-now-pay-later options like Klarna and Afterpay.
Can I change or cancel my order after it's placed?
Orders are processed quickly to ensure fast delivery. You can change or cancel your order within 60 minutes of placement by contacting our support team.