Single-crystal diamond and method of manufacturing the same

A single-crystal diamond having an X-ray diffraction rocking curve with a half-width of 20 seconds or less,

• wherein the half-width of the X-ray diffraction rocking curve is measured with CuKα radiation in a (004) plane parallel arrangement using a diamond crystal as a first crystal in X-ray diffraction by a double-crystal method,
• a peak at a Raman shift in the range of 1332 cm−1 to 1333 cm−1 in a Raman spectrum has a half-width of 2.0 cm−1 or less,
• the single-crystal diamond has an etch-pit density of 10,000/cm2 or less,
• the etch-pit density is measured in an etching test,
• the single-crystal diamond has a nitrogen content in the range of 0.0001 ppm to 0.1 ppm based on the number of atoms, and
• the single-crystal diamond has a 13C content of less than 0.01% based on the number of atoms.