2.00 CTW Crystal Stud Earrings with Blue Zircon Swarovski Elements 2 carat blue zircon 18 white gold stud earrings white gold basket setting with hypoallergenic post gorgeous sky blue pair of earrings make a perfect gift for any occasion, and can be worn anywhere 2 carat blue zircon earrings are a perfect set to add to your own collection of stud earrings wear them anywhere very beautiful to wear dressed up or dressed down!!