will this inclusion pose durability issues?

[chel180]

Should I be worried about this stone?

 

[Roxy]

You'll need a little more info from your vendor in order to determine whether a "durability" concern is warranted. Do you have the cert? Then there should be a rating for the clarity of the stone on the cert. Once you have that, you can ask the vendor for their expert opinion re how the inclusions might affect the look or durability of the stones. You should also ask the vendor to send you enlarged photos, taken under a microscope, where they can point out the major inclusions of concern to you.