Within the catalog of gsi diamond certification https://gemscience.net/ stones, you'll select huge precious stones with clarity of 1 to 7a and little jewels with clarity of 1 to 5. From the crown, which is how the jewel is set in a fixed way, inclusions and surrenders are not obvious to the exposed eye. The foremost invaluable virtue bunches 7 and 7a. With a 10-fold increment, you'll be able to see the abandons of the precious stone, but with the exposed eye, they will not be discernible.