Cosa Concierge Service

Cosabana offers free item authentication and free shipping (limited time*) on all items $500 or more via Posh Concierge service.

How does Cosa Concierge work?

Your purchase will first be shipped to Cosabana where our team of luxury experts will verify the quality and authenticity of your item, package it with care, and ship it to you. The processing is typically completed within 1 to 2 business days once your purchase is received by Cosabana. Your order tracking page will keep you informed as your order travels from the seller to Cosabana and then to you.

What do I have to do as a seller?

You don't have to do anything differently. As usual, you'll receive a pre-paid, pre-addressed shipping label. However, with Cosa Concierge, the label will be addressed to Cosabana. You can track the item via the app and monitor the progress as it is processed, verified, and shipped to its final destination.

What do I have to do as a shopper?

If you see the Cosa Concierge icon on an item you've been coveting, that means that the item is eligible for this premium service. Simply press the Buy Now button to purchase luxury with confidence.

What are the key benefits of Cosa Concierge?

This service upgrades the simple and safe shopping experience on Cosabana for designer and luxury items by taking it to another level. The added verification for premium items makes it even more stress-free to buy and sell luxury items. Cosabana is already home to one of the largest collections from designers like Chanel, Hermes, Louis Vuitton and others; Cosa Concierge makes Cosabana the best place to shop and sell luxury items.

Note: The brands sold on Cosabana are not affiliated with Cosabana or the Cosa Concierge service. The experts that assist in providing additional verification through the Posh Concierge service are not affiliated with or certified by any brand sold on Cosabana. The trademarks and/or service marks of the brands sold on Cosabana are the property of those brands, and not of Cosabana.

As always, if you have questions after your order arrives, we're always here to help at