During this promotion, keys are used to unlock gems rather than the traditional chests. The gems remaining to find are shown on the right side of the interface, so players can see what rarity of items they can possibly obtain. After unlocking 4 gems, players can choose to spend 100 Hearts of Ice to reset and obtain a fresh set of gems of varying rarities that may be unlocked, as long as there isn't a unique prize gem of ultra rare rarity available to unlock - it must be unlocked first. All players receive 10 Treasure Hunter keys as their first prize.
The original promotional prizes included shadow gem overrides, protean selections, and a pack of 10 Treasure Hunter keys. On the promotion's first return, all of the original prizes were available, while several new prizes were introduced. For the promotion's September 2019 return, shadow gem Virtus items were added as prizes.
|Shadow gem necklace token||1,186,944 [graph]|
|Shadow gem crown token||1,911,011 [graph]|
|Shadow gem cape token||3,228,305 [graph]|
|Shadow gem sack token||2,924,216 [graph]|
|Shadow gem helm token||660,593 [graph]|
|Shadow gem melee weapon token||997,124 [graph]|
|Shadow gem magic weapon token||1,456,575 [graph]|
|Shadow gem ranged weapon token||1,776,888 [graph]|
|Crystal Capsules (edit)|
|Start Date||End Date||Update/Promo|
|19 September 2019||23 September 2019||N/A|
|16 July 2019||2nd Chance Tuesday|
|13 June 2019||17 June 2019||N/A|
|12 March 2019||2nd Chance Tuesday|
|7 February 2019||11 February 2019||N/A|
|13 September 2018||17 September 2018||Crystal Capsules|
- This was the first promotion to use a new "ultra rare" rarity for Treasure Hunter gems.