Spinel

Color: Red and Pink to blue to mauve, brown and black
Symbolism: Renewal, Hope, Imagination
Anecdote: Famous spinels: The Black Prince’s Ruby and the “Timur ruby” in the British Crown Jewels, the “Côte de Bretagne”, formerly from the French Crown jewels. The Samarian Spinel is the largest known spinel in the world, weighing 500 carats (100 g) and is part of the Iranian Crown Jewels
Source: Sri Lanka, Afghanistan, Vietnam, Tanzania, Kenya, Madagascar