|Introduced||December 11, 2014|
|Rare Gem type||Limited|
When the player begins a game with Aquartz activated, one of three special starting layouts appears. All three configurations include orange gems that resemble acorns. An acorn functions identically to a Flame Gem, except an acorn clears 16 gems in a 5×5 clover-shaped pattern instead. The base value for clearing an acorn is 1,500 points. While Aquartz is active, acorns replace random orange gems throughout the game, and Flame Gems created using orange gems become acorns instead.
After the Last Hurrah, a Coin bonus occurs in which nine acorn icons appear in a 3×3 arrangement. When the player selects an icon, it reveals a numerical Coin value that is then added to the player's Coin total. The Coin payouts the bonus offers are 1,000, 2,000, 3,000, 6,000, 10,000, 15,000, 30,000, 60,000, and 100,000.
- The name of this Rare Gem is a portmanteau of acorn and quartz.