|Introduced||October 4, 2016|
|Rare Gem type||Limited|
When the player begins a game with Stemerald activated, a special board configuration will appear. The starting layout includes a random number of unique green gems (with spiral patterns in the centers of them and yellow borders) that resemble seeds. Upon clearing a seed from the grid, the seed will explode, destroying itself plus all the gems in its column except the gems below it. The base value for clearing a seed is 6,000 points. While Stemerald is active, Flame Gems created using green gems will become seeds instead, and seeds will replace random green gems throughout the game except during the Last Hurrah and optional Encore.
After the Last Hurrah (or Encore if the player accepted Feathered Fury's offer), a Coin bonus occurs in which nine seed 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, 5,000, 10,000, 15,000, 25,000, 35,000, 50,000, 100,000, and 500,000.
- The name of this Rare Gem is a portmanteau pun on stem and emerald.
- The internal name of this Rare Gem is
MagicBean, which is a reference to the English fairy tale "Jack and the Beanstalk."