What Does Si1 Mean In Diamonds - If you're trying to decide on a clarity grade for your diamond, si1 might be your best option. “si” stands for “slightly included,” while “1” means “to the first degree.” so, these diamonds feature inclusions a jeweler’s loupe. These diamonds usually appear flawless to the eye.
These diamonds usually appear flawless to the eye. “si” stands for “slightly included,” while “1” means “to the first degree.” so, these diamonds feature inclusions a jeweler’s loupe. If you're trying to decide on a clarity grade for your diamond, si1 might be your best option.