Sterling Silver 925 cubic zirconia earrings. Bezel set for optimum protection and security of the gem stone. The silver earrings have a basket setting that is 4mm round. The clasp is butterfly design for comfort and ease of use. The posts are 15 mm long. Crafted in nickel compliant, 925 stamped sterling silver. Isabella Silver Isabella Silver are proud to offer these beautiful silver stud earrings. All pieces come packaged in a gift box making them wonderful gifts. Isabella Silver offer a customer service team available seven days a week to answer any product questions before, during or after the purchase. If you’re not satisfied for any reason and return your purchase within 30 days you will receive a full refund. Cubic Zirconia Versus Diamond There are a few key features of cubic zirconia which distinguish it from diamond: Hardness: cubic zirconia has a rating of approximately 8 on Mohs hardness scale vs. a rating of 10 for diamond. The density of cubic zirconia is about 1.7 times that of diamond. Dispersion is very high at 0.058–0.066, exceeding a diamond's 0.044. Only the rarest of diamonds are truly colorless, most having a tinge of yellow or brown. By comparison, a cubic zirconia is entirely colorless: equivalent to a perfect "D" on a diamonds grading scale.
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