Our simulated diamond stud earrings are cut exactly like real diamonds with the same number of facets for optimal sparkle and they are super hard just like the real thing. No one will tell the difference! The simulated diamonds are set in a highly secure, 4-prong designer style mountings that feature screw on, screw off posts and backings. The radiance and fire of these created diamonds are equivalent if not superior to a natural diamond of VVS1 clarity and D color with an excellent cut. Product