Regular Brawl Boxes can be bought for 10 Gems each. These are identical to the ones bought using Coins.
Big Boxes cost 80 Gems and contain 10 regular Brawl Boxes.
Rare, Super Rare, Epic and Mythic Brawler Boxes, which are guaranteed to contain a Brawler of their respective rarity, can also be purchased with Gems. A Rare Brawler Box costs 30 Gems, a Super Rare Brawler Box costs 80 Gems, an Epic Brawler Box costs 170 Gems and a Mythic Brawler Box costs 350 Gems.
You can buy coin doublers from the shop to increase the amount of Coins earned while playing. This booster costs 50 Gems and doubles the next 1,000 Coins received at the end of any match.
Gems can also be used to purchase Brawler Skins. Skins are purely cosmetic modifications to a Brawler's appearance.
Gems are bought using real money through in-app purchases.
30 Gems (a fist full of Gems)
80 Gems (a pouch of Gems)
170 Gems (a satchel of Gems)
350 Gems (a bucket of Gems)
900 Gems (a crate full of Gems)
1850 Gems (a haul of Gems)
Special Offer Packs
These special offers appear at player Experience levels 10, 20, and 30, and they can only be bought once. The packs contain Gems and a Brawl Box for a reduced price.