Text: Indian diamond mines produced some of the world's greatest gems, including the Kohi-nur (Mountain of Light), now in the British crown jewels, having originally been set in the Peacock Throne.
Entailment: The diamond mines in India contain some of the world's greatest gems, the Kohi-nur (Mountain of Light), which now resided in the British crown jewles, having previously been set in the Peacock Throne.
Contradiction: India's diamond mines produce sub-par diamonds.