I am just a little confused and (am probably looking at it wrong) but when you say Dispersion under .20 is considered weak ie Sapphire .018 would be under .20
Diamonds with a High Dispersion 0.44 I thought as a decimal is still under .20 ??
If anyone can help clarify I would appreciate it.
Sorry. I meant to put Dispersion of Diamond .044 (not 0.44) which is considered high but still under .20