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Collections / Opal / Single Astrid Flat Back Stud Earring







Stone Color: Onyx
Metal Color:Silver


A single tridot stud with tiny cz crystals. 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

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Free standard shipping in US for all orders $75+

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

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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. 

How We Styled This

Person wearing Person wearing Person wearing Person wearing

Tested for Purity

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

lab results

Pair With

single pavé coastal hoop earring


Customer Reviews

Based on 28 reviews
Hallie Kobylski
Great product & even greater customer service

Absolutely loved my order but ran into an issue (not product related)—thankful customer service was immensely helpful and was able to get me what I needed. I have incredibly sensitive ears, and I've never had an issue with irritation when wearing them. Highly recommend!

I love these

I love these earrings. They look beautiful and they don’t irritate my ears.

Great for upper helix

I was looking for a better upper helix stud that I can change easily and not take frustrating hours to do so. This was it. I have a really easy time getting it on and off, but also feels secure in my piercing. Plus the black/gold color combination is beautiful. No issue with post length or thickness of the gauge. Fits great in my piercing, and I sleep in this. Easy to clean. I have this for a few months now and no issues at all.

the BEST little earrings

This is the third attempt at trying to find earrings I could comfortably wear all day every day. And this is the clear winner! I love them. They fit well on my earlobes - they don't hang out. I tried another pair of flat back earrings and they poked out too far. These are just right for me. The style can look dressy or casual - it is very versatile. I haven't taken them out since I got them a week ago. LOVE LOVE LOVE.

Perfect, but not for cartilage piercings

I purchased a single stud for a cartilage piercing. No amount of vaseline or 'pre threading' the hole will make this stud fit. Really disappointed, but I still liked the stud so much I bought another so I would have a pair for a lobe piercing.

I have other flat back studs from a different manufacturer, and they are ever so slightly smaller screw in posts that do fit in my cartilage piercing. But they are not as nice.

As Seen In:

single astrid flat back stud earring