The documentary opens at a West Bank stone quarry where Palestinian masons are cutting stone for the addition.

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I'm just getting stuck into the entertaining Cutting for Stone, by Abraham Verghese, which begins with the "unexpected" pregnancy of a nun in Addis Ababa.

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Apple is trying to take down two birds with one stone, targeting both Samsung and Google and cutting straight to the heart of the latest Android operating system.

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Using computerized measuring equipment, the AGS verified that each stone was cut and polished to rigorous standards, which can take up to four times longer than normal cutting and, in the wrong hands, result in a ruined stone.

FORBES: Stones on fire

The shape of the stone, likely dating back to the later 16th century, is a product of "diamond-cutting in its infancy, " he says.

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Then he discovered a new Japanese method of cutting diamonds: When viewed under a low-magnification (3x) lens, the stone refracted light in such a way as to give off a pattern of eight heart-shaped sparkles at the bottom of the diamond and eight arrow-shaped fire-bursts through the top--hence the name "hearts-and-arrows" diamonds.

FORBES: Stones on fire