2mm Each . Stud Earrings Round Shape (1/10 Ct or 0.10 Ct) Clarity (Si1-si2 Clarity) 2mm Each Cubic Zirconia Stud Earrings Round Shape (1/10 CT or 0.10 CT) Clarity (SI1-SI2 Clarity) All our Cubic Zirconias are conflict-free Cubic Zirconias Platinum Plated Over 925 Sterling Silver Hypoallergenic Solid Setting With Push Backs