Table 1: Summary of SIMS carbon and nitrogen data for the different diamond generations in each plate

GC8 GC30 GC42

CL characteristics **3C (”) N (ppm) *13C (”) N (ppm) *13C (”) N (ppm)
(A) Pink-yellow diamond 0 to -8 25-80 -15 to -20 15-25 -- --
(B) Blue-green diamond -10 to -19 0-750 -11 to -18 0-500 -1 to -8 5-200