SI1 Diamonds

SI1 diamonds — common questions

Is a SI1 diamond eye-clean?

Often — many SI1 stones are eye-clean, especially round brilliants, but it varies, so each SI1 should be viewed individually (we flag the eye-clean ones).

What does SI1 clarity mean?

SI1 means 'slightly included, first degree' — inclusions are noticeable under magnification and occasionally visible to a keen eye.

Is SI1 clarity good value?

SI1 is strong value — frequently eye-clean for far less than VS, letting you put the budget into size or color.