Originally Posted by
gnomie
This is directly from the Saks Fifth Avenue gift card page on their website:
Terms for Gift Cards
This Gift Card may be used only to purchase merchandise and services sold at Saks Fifth Avenue and OFF 5TH stores, through 877.551.7257 or at Saks.com and saksoff5th.com. It may not be used to purchase Gift Cards.
I'm just going to add that it's important to let the Saks OFF 5TH cashier know at the outset you'll be using a gift card, not a credit card.