Question: are all vs1 diamonds eye clean?
Answer: According to GIA and AGS, diamonds that are considered Flawless (FL), Internally Flawless (IF), Very, Very Slightly Included (VVS1 and VVS2) and Very Slightly Included (VS1 and VS2) are considered eye clean. On the other hand, Slightly Included (SI1 and SI2) diamonds may or may not be eye clean.