Certified Diamond Pendant with Silver Chain

This is a special piece, The center is testing as a diamond but the surrounding gemstones are cubic zirconian. The top clasp is slightly imperfect but you can only see it up close from an angle, I'm afraid to try and make it perfectly straight because I don't have the right tools. The setting is 925 Stamped sterling silver and will come with a 925 stamped silver chain 18inches The certificate says earth mined but I can't be sure it is, lab diamonds and also moissanite will test as diamond so I am pricing it as though it was the lesser stones, either way I think this is an incredible price!