Lock & Secure Earring Back

By Chrysmela


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Chrysmela earring backs lock earrings—like investment pieces and sentimental favorites—in place so you can wear them worry-free. Nine precision-machined parts, including three micro ball bearings built into the back auto-adjust to an earring post to hold it firmly in place and can grab the notch in the post for extra security. Now your earrings can stay secure until you unlock them. Made with platinum- or gold-coated surgical stainless steel to be both long-lasting and to blend in with those extra-special earrings.

  • Materials: Surgical stainless steel internal mechanism (SUS316L); Coating: 99.9% purity platinum or 99.9% purity 24k yellow gold. Hypoallergenic
  • Care: Clean as as directed for optimum performance for many years. Do not twist as it may damage the precision mechanism
  • Includes: Two earring backs, gift box, cleaning instruction card, authentication serial number
  • Instructions: Insert Chrysmela onto earring post. To remove, open locking mechanism by gently pulling the end-panel while removing back from post
  • Easy to use locking mechanism protects your earrings from falling off
  • Patented in 5 countries (USA, UK, France, Italy and Japan), precision technology features three micro ball bearings that automatically adjust to earring post diameter
  • Allows you to wear earrings daily without worrying about losing them
  • Please note: Fits straight earring posts measuring 0.6-1.1 mm in diameter. Also works on screw posts that measure 0.6-1.1 mm in diameter
  • Warning: Choking hazard, keep out of reach of children
  • Made in Japan
  • Dimensions (each): 0.44" x 0.125" diameter
  • Weight: 0.001 lb

27 Reviews (4.5 out of 5 Grommets)

Sorted by Rating

The Best

8/9/2019 by ReddRN

I bought the platinum color for my diamond earrings. The screw backs never seemed to fit or feel secure. So I put them away. After going to several jewelry stores and none of the backs fit tight enough.The fit is secure and now I wear them everyday. I don't worry showering or shampooing my hair. A great purchase. Thank you!!More > < Less



7/26/2019 by Johanna

I agree with the security benefits all other reviewers have mentioned, but these earring backs also make it possible for me to sleep with my diamond studs in. The traditional backs were too wide and dug into my skin making it uncomfortable to sleep with earrings in. These are so comfortable I can sleep! Makes it easy for travel.More > < Less


Very secure

7/12/2019 by Joni

They work just like the advertising



6/26/2019 by ls

Been using these every day for a couple of months on a pair of small diamond earrings. They work perfectly. I'm allergic to gold and silver so the platinum plated ones work great for me.More > < Less


Work amazing!

6/23/2019 by Jen

These work great. Easy to take off too. Practice with the box before using. Definitely worth the price for the reassurance that my diamonds will not fall out and be lost forever.
Thanks for a great product that does what it says!!
More > < Less

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About Chrysmela

Locked In Place

Chrysmela earring backs lock investment piece earrings and sentimental favorites in place so you don’t have to worry about losing them. They are made with gold- and platinum-coated surgical stainless steel to be long-lasting and to blend seamlessly with the look of high-end earrings.

Eri Kikunaga came up with the idea to make earrings more secure after a fight (and break-up) with a boyfriend over—you guessed it—a lost earring. The key to Eri’s fortified earring back design is nine precision-machined parts including three micro ball bearings that lock an earring in place. The back auto-adjusts to the post and will hang onto the notch in the post as an extra security measure.

The earring backs are made in Japan at high-tech factories that also make smartphone cameras and watch mechanisms because Eri wanted her backs to be made to precision. That attention to detail results in an earring back that won’t budge—and that can provide lift for heavier earrings, too. With a pair of these backing up your earrings, you can wear favorite pairs with confidence that they’ll stay put no matter what you’re doing.