Authentic with Card brand new 5 Carat Mossanite Silver Stud Earrings. These are good quality and comfortable Silver Stud Mossanite Earrings that are 5 Carat the back part is easy to put inside the silver back part at the back of the ear to make it go all the way at the end to make sure it is secure to close in which it will not come off in which it is or you can purchase the backs I am also able to provide two backs which will also can be worn at the back that is also secure and will not come out. You can also get the backs of the earrings anywhere. Can be worn everyday wear or as you want. I have posted a picture of the Authenticity Card that it will come with this that you can take a look at and have also written down what it says on the card as well here on the bottom as well. It has been purchased by me for more but selling for less than what purchased for. I can guarantee you these are Authentic. It says on the Authenticity Card Certificate of identification of jade and precious metals Conclusion: 925 Earrings Precious Metal Ag: 925% Total Mass: 4.57g Remarks X-Ray-fluorescence spectrometer test Customer Name Tester Supervisor Number: 6220864120 Check Code: 3998 It has the Barcode on the side as shown in the pictures. When sending will ship with the Authencity Card and earrings in two padded envelopes that way it is safe and secure during the shipping process. Serious Buyers Only. Please kindly let me know if you have any questions anytime? Thank you.