Which dragons breed to get a diamond dragon on dragonstory?

Firestorm & Island

Firestorm & Serpent

Eagle & Island

Eagle & Serpent

Diamond & Diamond

Aurora & Scorpion

Scorpion & Mermaid

Mermaid & Firestorm

Mermaid & Eagle

Scorpion & Serpent

Scorpion & Island

Mist & Charm

Note: Any red, yellow, green, and blue dragons mixed together will make a diamond dragon.