Gift Cards are great way to promote your store as a site for gifts and can help increase traffic as customers have more options when buying from your store.  This feature is only available for accounts with unlimited and above plans.
To send out Gift Cards follow these easy steps:
From your dashboard, navigate to Marketing -> Gift Card. Then click the "Add" button. Fill out the code for the gift card, the name of your store, your e-mail, the recipient's name, the recipient's e-mail, any message you would like to send to them, and the amount of the gift card.

Besides sending gift cards yourself, you may want customers to be able to buy gift cards from your store. To enable this,  just follow these steps:

Navigate to Design -> Navigation, under the Top or Footer Navigation Bar headline click the "Add" button. Under name of link write "gift card" or whatever name you choose, and then from the "Link To" option select, "System" and then "Gift Card" and click "Add".

Customers should now be able to purchase Gift Cards directly from your store.

Once the order status of the gift card has been changed to finished, a gift card will be generated automatically. At the same time, the recipient will receive an email containing the gift card voucher. The recipient will be able to use this gift card at your store during the checkout process.