METHOD OF MANUFACTURING FANCY PALE BLUE OR FANCY PALE BLUE/GREEN SINGLE CRYSTAL CVD DIAMOND AND OBTAINED PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide a fancy pale blue or fancy pale blue/green single crystal CVD diamond and a method of manufacturing the same.SOLUTION: There is disclosed a method of manufacturing a fancy pale blue or fancy pale blue/green CVD diamond material. The method includes a process of introducing isolated holes into the diamond material by irradiating a single crystal diamond material grown in a CVD process with an electron. The diamond material having been irradiated (or after further irradiation post processing) has a total hole concentration [V] and a path length L such that total hole concentration[V]×path length L is at least 0.072 ppm cm and at most 0.36 ppm cm, and the diamond material has a fancy pale blue or fancy pale blue/green color. Further, there is also disclosed a fancy pale blue diamond.