博茨瓦纳发现世界第二大钻石

博茨瓦纳发现了一颗重达 2,492 克拉的钻石，这是自 1905 年发现库里南钻石以来最大的钻石发现。这颗巨型钻石是世界第二大钻石，仅次于库里南钻石。

## Original Title: World’s second-largest diamond found in Botswana

## Article Content:
A 2,492-carat stone has been unearthed, in the biggest find since the Cullinan diamond in 1905.

Original article: https://www.bbc.com/news/articles/c1w78rwlqvxo