Michael Dirda

For a boy of ten, used to the coal bings and rust-coloured burns of Cowdenbeath, the fields and woodland of Kingswood, with its overgrown but stately avenue of copper-barked sequoias, felt like a local version of paradise.

The price of diamonds can vary greatly depending on size, cut, color, and other factors, including whether they have a history. But because of the rarity of blue boron diamonds, they often fetch more money than gems of similar quality.