Here's how gem vouchers, gift codes, and free gems work — they're three different things.
TL;DR
A gem voucher replaces a card you won that's no longer available; you can exchange it in the Marketplace for a graded slab, withdraw it via crypto (with crypto access), or sell it for gems. Gift codes from support or creator giveaways are redeemed under Refill (or Get Gems) → Gift Code, and they're single-use and may expire. Gems from gem drops, missions, and other on-site free methods go straight to your balance — there's no code to enter.
Gem vouchers
If a card you won (for example from a vending machine, or a rare 1-of-1) is no longer available, it's replaced with a gem voucher. You can use a gem voucher to:
Exchange it in the Marketplace for a graded slab,
Withdraw it via crypto, if you have crypto access, or
Sell it for gems — the value is added to your balance.
Gift codes (from support or creator giveaways)
Have a gem code from support or a creator giveaway? Redeem it under Refill (or Get Gems) → Gift Code. Codes are single-use and may expire — enter the code exactly.
Gem drops, missions & other free gems
Gems from gem drops, missions, and other on-site free methods go straight to your balance — there's no code to enter.
Common questions
What's a gem voucher?
A replacement for a won card that's no longer available — you can exchange it in the Marketplace, withdraw it via crypto (with crypto access), or sell it for gems.
Can I turn a gem voucher into gems?
Yes — sell it for gems, and the value is added to your balance.
Where do I enter a gift code?
Under Refill / Get Gems → Gift Code.
Do gem drops need a code?
No — drops and other free gems credit directly to your balance.