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Collections / all hypoallergenic earrings / Single Nano Celeste Flat Back Stud Earring





pink tourmaline

pink tourmaline





Stone Color: April
Metal Color:Gold


The tiniest single Cystal stud made for adding just a hint of sparkle to your ear stack. Designed with an internally threaded flat back and crafted with ASTM F-136 implant grade titanium for ultimate 24/7 comfort.


See how these will look on your ear:

ear stacker

99.5% Happy customers

Free standard shipping in US for holiday season (ends 12/31)

Holiday returns until January 20, 2024

Every purchase supports the clean water non-profit Initiative: Eau

Buy now, pay over time with Affirm


ASTM F-67: Pure, unalloyed titanium. This is the safest metal for sensitive ears because it is the least likely to cause a reaction. We use this for almost all of our earrings.

ASTM F-136: Implant grade titanium. This is an biocompatible alloy containing aluminum, vanadium, and titanium. We use this for our flat back studs.

STAINLESS STEEL: We use this as a base metal for our bracelets and necklaces. We always use nickel free and lead free stainless steel. It is then plated with titanium nitride, a biocompatible material, to further protect sensitive skin.

COATING: Titanium nitride PVD is applied to our gold jewelry to give it an 18k gold color. Titanium nitride is a hypoallergenic material that is more durable and resistant to wear than gold plating.

CARE: Since the materials we use are non-tarnishing, our jewelry can be worn in the water and will not change color, rust, tarnish or turn green. 

Tested for Purity

We lab test our earrings to ensure they meet our purity standards

lab results

Pair With

single piper hoop earring


Customer Reviews

Based on 26 reviews
Nicole Chambers
Gauge is too thick

I love the size of the stud, but these earrings are completely unusable because the gauge is too think. I think the screw head is what makes the post thicker. Super bummed I can’t wear it!

Beautiful earrings

They are beautiful, but it’s so hard to put them on. They are so tiny.

April Riley
Cute but…

These are really cute and exactly what I was looking for but the threaded end is SO short that they’re extremely hard to put in. Once I did get them in, they were hard to tighten. I guess I didn’t tighten them well enough because like two days later I noticed I had lost one. Such a bummer. Just kind of disappointed with the whole thing.

Jessica M
Beautiful product. Great customer service.

Beautiful, tiny studs. Not at all irritating to my sensitive ears. Unfortunately I lost the jewel portion of one of my earrings. I emailed customer service and they were unable to replace my earring as it is out of stock. However, they did send me a $30.00 gift card which was extremely generous. Great experience with this company!

Lori R
Too small and difficult to wear

Extremely small, making it impossible to insert and screw in. So small and difficult to insert that it flew out of my fingers and down the drain the very first time I tried to wear. Very disappointed.

As Seen In:

single nano celeste flat back stud earring