Stud Earring Size Chart: What Works Best for Every Look (2025)

There’s something undeniably timeless about stud earrings. Whether you’re dressing for a power meeting, a summer brunch, or your own wedding, the right size stud is that subtle yet powerful detail that says you know your style.

At Tyaani, we’re all about elevating the classics, and our uncut Polki and diamond studs prove that heritage craftsmanship can feel modern, bold, and uniquely yours.

But size matters. Not every stud suits every ear or every occasion. This guide will help you decode carats, millimetres, styling proportions, and all those subtle cues that turn a good stud into your signature.

Stud Earring Sizes (mm, cm, Carats)

When people talk about stud earring size, they usually mean diameter (in mm or cm) or diamond carat weight. Here’s a quick cheat sheet:

Small: 3–4 mm (~0.10–0.25 carat per stud)
Delicate, subtle, great for second/third piercings or minimalists.

Medium: 5–6 mm (~0.30–0.50 carat per stud)
Everyday elegance with noticeable sparkle.

Classic Statement: 6.5–7.5 mm (~0.60–1 carat per stud)
The timeless choice that flatters all.

Bold/Bridal: 8–10 mm (1.25–2+ carats per stud)
Dramatic, luxe, and perfect for major events.

Stud Earring Size Chart

Diameter (mm)	Approx. Carat (each)	Best For	Tyaani Take
3–4 mm	0.10–0.25	Minimalist daily wear	Perfect for layered Polki looks
5–6 mm	0.30–0.50	Office, day-to-night styling	Heritage-inspired everyday sophistication
6.5–7.5 mm	0.60–1.00	Classic statement, gifting	The "forever" uncut diamond look
8–10 mm	1.25–2.00+	Bridal, festive, and special occasions	Ultimate Polki royalty

(Note: Polki is measured a little differently because of its uncut, irregular shapes but Tyaani’s design team balances these proportions to deliver maximum face-flattering impact.)

How to Choose the Right Stud Size for Your Style?

Minimalist or Layered Lover?
Go for 3–4 mm. Perfect for second or third piercings, stacking, or subtle luxury vibes.
Everyday Essentialist?
5–6 mm is your sweet spot. Big enough to show off craftsmanship without being flashy.
Classic with a Twist?
6.5–7.5 mm Polki or diamond studs give you heritage grandeur in a modern silhouette.
Maximalist or Bride?
8 mm and up. Think regal, bold, and confident. Best with sleek hair to show them off.

Styling Size Tips Based on Face Shape & Ear Proportion

Petite Features / Smaller Earlobes:
3–5 mm keeps the look balanced and chic. Avoid heavy pieces that might look overwhelming.

Medium/Classic Features:
5–7.5 mm is the gold standard; it catches light beautifully without stealing the whole show.

Dramatic or Broad Features:
7.5–10 mm (or layered clusters) deliver proportion and balance. Tyaani’s larger Polki settings especially shine here.

Multiple Piercings?
Anchor with a 5–6 mm main stud and go smaller as you climb the ear.

Trending Stud Sizes in 2025

The Revival of the Oversized Stud:
Big, bold 8–10 mm Polki and diamond studs are making major runway appearances this year. Think regal but wearable.

Mixed Metals & Dual Tones:
Yellow gold for warmth, white gold for brightness, sometimes in the same pair.

Convertible Designs:
Studs that attach to drops or jackets. Your 5 mm office staple becomes your 10 mm wedding showstopper.

Organic Shapes:
Polki’s uncut charm, no two pieces are identical. Perfectly imperfect and dripping in heritage allure.

Final Note

At Tyaani, we don’t think of stud earrings as “basic.” They’re your signature.

Choosing the right size is about more than carats or millimetres. It’s about how you want to show up in the world: powerful, elegant, authentic.

Whether you’re stacking tiny studs for a cool, layered look, investing in the perfect everyday diamond, or choosing that oversized bridal pair, Tyaani’s Polki and fine diamond artistry ensures every stud is worthy of the moment and of you.