Diamond Studs What to Look For When Buying

How to pick the right size, shape, clarity, metal and setting for lobes, helix and every day.

"The best studs are the ones you forget you are wearing."Diamond studs are the ultimate everyday piece: light, comfortable, and quietly polished with everything from denim to tailoring and eveningwear. The “best” size is rarely about chasing carat weight. It is about proportion, balance on your lobe, and how you actually live.

SIZE GUIDE: WHAT SIZE DIAMOND STUDS ARE BEST?

Use this quick guide per ear for round diamonds:

Subtle, everyday: 0.10 to 0.30 ct (about 3.0 to 4.3 mm)
Ideal for second piercings, helix, or a minimal look

All rounder: 0.30 to 0.60 ct (about 4.5 to 5.2 mm)
Bright, practical, and the most chosen daily range

Statement daily: 0.60 to 1.00 ct (about 5.7 to 6.5 mm)
Luxe, but still understated when the setting sits close to the ear

Occasion: 1.50 ct+ (about 6.9 mm+)
Unapologetically bold, often better saved for evenings if you prefer quiet luxury in daytime

Fit tip: proportions matter as much as carat. If your studs tilt forward, a martini or bezel setting usually helps because the stone sits closer to the ear. At Lena Cohen Jewellery we also customise post or barbell length, so the stud fits your lobe precisely and doesn’t leave extra post showing.

SHAPE GUIDE: WHAT SHAPE DIAMOND STUDS SHOULD I GET?

There is no single “best” shape. Think mood and styling.

Round brilliant: the forever classic, maximum sparkle
Oval: softly elongating, flattering in a stack
Princess (square): clean and graphic, great with sharp tailoring
Pear: elegant and slightly dressy, point up for lift or down for a drop feel
Marquise: chic and slimming, visually lengthens the ear line
Emerald or baguette: quiet, architectural sparkle, step cuts reward excellent cutting
Trillion: directional and minimal in curated ear styling

Styling note: mixing shapes across piercings can look intentional, for example a round in the main lobe and a marquise or baguette in the second.

CLARITY AND COLOUR: WHAT REALLY MATTERS?

Start with cut (sparkle lives there), then choose eye clean clarity.

Rounds, ovals, princess: VS to SI is a strong everyday sweet spot
Step cuts (emerald, baguette): aim VS+ as inclusions show more easily

Colour: in 18k yellow gold, H to J can look beautifully warm. In 18k white gold, G to H reads crisper. Always match the pair closely.

DO DIAMOND STUDS SUIT EVERYONE?

Yes, with the right setting and fit. If you have ever thought “my studs droop”, it is usually the lobe, not the diamond. Over time lobes can thin and piercing holes can elongate, making heavier stones pitch forward.

Two practical fixes:

Martini setting: a conical seat that lets the diamond nestle closer, reducing forward tilt

Made to measure post length: so the stud sits securely without pressure or excess movement

WHITE GOLD OR YELLOW GOLD?

Both work, it is a styling choice.

18k white gold: crisp, modern, emphasises the diamond’s brightness
18k yellow gold: warm and effortless, flattering on most skin tones

Mixing metals across piercings is also very current.

WHICH BACKS ARE BEST: SCREW BACKS, BUTTERFLY, OR FLAT BACKS?

Flower screw backs: very secure, distribute weight well, great for everyday confidence
Flat backs (press fit): ultra low profile, comfortable under hats and headphones, ideal for helix and cartilage
Butterfly backs: classic and quick, but can distribute weight less evenly

At Lena Cohen Jewellery we match the back style to your anatomy and preferences, including custom post lengths for a cleaner, more comfortable fit.

CAN YOU SLEEP IN DIAMOND STUDS?

If you must, keep it low profile and modest in size. Flat backs tend to be the kindest for sleep, while screw backs can feel secure but may imprint the skin. Either way, regular removal and cleaning helps prevent skincare build up and irritation.

For true everyday wear, prioritise solid 18k gold and natural diamonds. Lena Cohen Jewellery studs are handcrafted in London, designed to sit close, feel comfortable, and look quietly refined without needing to shout.

Choose balance over carat, cut over paperwork, and a setting that sits close. If your studs tilt, try a martini or bezel and the right post length. Lena Cohen Jewellery makes 18k solid gold, natural diamond studs in London.