Basic Diamond Single Barbell Stud - 3mm

One stone. Every piercing. The essential CZ barbell.

Every ear curation needs a foundation: a piece so clean and versatile that it works almost anywhere. This is it.

A single 3mm round brilliant cubic zirconia sits in a fine prong setting on a rhodium-plated 925 sterling silver barbell. The prongs grip the stone at its edge and leave its face open to the light, so it shows as much sparkle as possible. At conversation distance, the prongs almost disappear, and you see a single, precise point of light.

At 3mm, the stone is clearly present. It's confident enough to anchor a primary lobe, and refined enough to sit as a quiet accent beside larger pieces. If you want something even more minimal, there's also a 2.5mm.

A straight post leads to a round screw-back ball, a secure closure for healed lobe, helix and tragus piercings. In a composed ear, it's the clean sparkle that lets your more distinctive pieces lead.

One stone. Every piercing. The essential CZ barbell.

Key Features

1. 3mm Round Brilliant CZ
A single round stone, cut for bright, all-round sparkle.

2. Prong Solitaire Setting
Fine prongs hold the stone at its edge and leave its face open to light.

3. Confident, Versatile Size
Present enough to anchor a stack, refined enough to sit as an accent.

4. For Healed Piercings
Suits healed lobe, upper lobe, helix and tragus placements.

5. Screw-Back Ball Closure
Threads onto the post for a more secure hold than a push-back.

6. Rhodium-Plated 925 Sterling Silver
A bright, cool setting that frames the stone.

Product Details

Not suitable for new or healing piercings. For fresh piercings, choose implant-grade titanium.

FAQ

Is the stone a real diamond?
No. The stone is a 3mm round brilliant cubic zirconia, a lab-created stone cut for bright sparkle.

What's the difference between the 3mm and the 2.5mm?
They use the same round CZ, prong setting and barbell. Only the stone size differs. The 3mm is clearly visible and confident, which makes it a good primary lobe stone. The 2.5mm is the most minimal option, best for a subtle accent in an upper piercing.

What is a prong setting?
A prong setting uses small metal claws to grip the stone around its edge, leaving most of the stone open to light. It shows more sparkle than a bezel, which wraps the stone in a metal rim.

Which piercings does the 3mm barbell suit?
It suits healed lobe, upper lobe, helix and tragus piercings. The post is longer than a standard lobe stud's, so check that it suits your piercing's depth.

Can I wear it in a new piercing?
No. This stud is for fully healed piercings only. Sterling silver can irritate a healing piercing and may discolour the skin. Cartilage piercings often take 6 to 12 months to heal. For a fresh piercing, choose implant-grade titanium, such as the pieces in MNML's Elements collection.

How does a screw-back ball work?
The ball threads onto the end of the post. Turn it clockwise to fasten and anticlockwise to remove. It holds more securely than a push-back, but it can loosen gradually with wear, so check it every few days.

How do I use it in an ear stack?
Use it at the primary lobe for a clean, classic anchor. Or place it in an upper lobe or helix as a simple point of light above a more detailed piece. It sits well beside symbolic studs like the Mini Clover and Mini Cross without competing with them.

How do I care for the prong setting?
Every so often, check that the prongs are still sitting tight around the stone. Take care with knitwear and long hair. If a prong looks lifted, stop wearing the stud until it's been checked.

Will it tarnish?
Sterling silver can darken over time, and rhodium plating wears gradually with regular use, often faster in humid weather. Keep it away from perfume, lotion and chlorine, and store it dry in its pouch.

Is it suitable for sensitive ears?
Rhodium plating over 925 sterling silver is well tolerated in healed piercings by most people. If your ears react easily to metals, or your piercing is still healing, the titanium pieces in MNML's Elements collection are the most reliable choice.

Is it sold as a pair?
No. It's sold as a single piece for ear curation. Order two if you'd like one in each ear.