|Introduced||October 4, 2016|
|Rare Gem type||Limited|
When the player begins a game with Stemerald activated, a special starting layout will appear. The configuration includes a random number of unique green gems that resemble seeds. A seed, when cleared from the board, explodes, destroying itself plus every gem in its column except the gems below it. The base value for clearing a seed is 6,000 points. While Stemerald is active, seeds will replace random green gems throughout the game (except during the Last Hurrah and optional Encore), and Flame Gems created using green gems will result in creating seeds instead.
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.