Blood For Stolen Power

The queen thought control and power were everything.
She was wrong.
In hunger for control, she strove to take the king's gem and become more powerful, but as their relationship grew, she increasingly began to grow more possessive of her King.
However, little did she know, her husband knew about this plan, having heard the whispers.
In the recent war, Queen Alice was injured.
She needed surgery, and during the surgery, her husband stole her red diamond from her heart and ran away.
This aggravated the queen completely and made her lose control.
What will she do now...?
In this world, gems are power. Beings are born with gems embedded in their heart. If a person has more than one gem, they become more powerful.
Red diamonds are the top tier, always meant to lead.
Ruby comes second; they are meant to be second in leade..
Emerald comes third; they are neutral; thus, they maintain peace.
Blue Sapphire comes last. They are the lowest tier; thus, they are supposed to follow the lead.
With every gem come different responsibilities, power and abilities.