Men's studs: 5 mm round, 7.5 mm square or halo
From two meters away nobody can tell what metal is in your ear. What you do see instantly is the shape. A round stone looks like a point of light, a square stone like a plane, and a halo like a stone larger than it actually is.
That is why this guide starts with shape and only then moves to material. Our earrings hold three stud shapes that each do something different: 5 mm round, 7.5 mm square, and a 5 mm circle with a halo of small stones around it. Alongside them sits the hoop, for anyone who does not want a stone as the centerpiece.
1. Shape registers before material does
Put the three shapes side by side at true relative scale and the difference is larger than the millimeters suggest. A round 5 mm stone shows a visible surface of roughly 19.6 mm². A square 7.5 mm stone comes to 56.25 mm², nearly three times as much. The diagonal of that square measures 10.6 mm, well over double the round stone.
Even so, the square is not automatically the loudest. A round brilliant breaks light into many small points; a square cut has larger, flatter facets and gives broader flashes. Up close a square looks calmer, at a distance more emphatic.
The halo plays a third game. The center stone stays 5 mm, but the ring around it widens the whole picture, so on the ear it looks like a solitaire of considerably more than 5 mm. All three shapes sit together in the moissanite earrings.
2. Round 5 mm: the size that always works
The round 5 mm moissanite studs are the safest choice if you have never worn an earring. Five millimeters is big enough to show as a point of light from two meters away and small enough that on a working day it is not the first thing anyone says about you.
What is in them: solid 925 sterling silver with white gold plating, set with a 5 mm round VVS D moissanite, on posts, with a GRA certificate in the box. Moissanite is silicon carbide, a gemstone in its own right, grown in a lab because it barely occurs in nature. On the Mohs scale it scores 9.25, against 10 for diamond and 8 to 8.5 for cubic zirconia. Its refractive index is 2.65 to 2.69 against 2.42 for diamond, and its dispersion at 0.104 against 0.044.
That last figure explains why a moissanite throws color as you move while a diamond of the same size stays mostly white. If you want to see the two stones next to each other, it is worked out in moissanite against diamond in stud earrings.
3. Square 7.5 mm: nearly three times the surface
The 7.5 mm square studs are the step up for anyone who wants the earring to be seen. A square holds more surface than a circle of the same width, so 7.5 mm square reads bigger than 7.5 mm round, and far bigger than 5 mm round.
The effect also lives in the straight line. A circle follows the curve of the earlobe and sinks into it a little. A square sets a straight edge against that curve, and that is where your eye keeps catching.
The base is the same as the round pair: solid 925 sterling silver with white gold plating, a 7.5 mm square VVS D moissanite, on posts. One practical note: a larger stone sits higher on the lobe, so with a scarf or a high collar you feel it sooner than at 5 mm.
4. The 5 mm halo: bigger without a bigger stone
The circle studs carry a central 5 mm VVS D moissanite with a ring of small stones around it. That ring does two things, and the second one almost never gets mentioned.
The first effect is optical: the border of small stones widens the whole picture noticeably, so you buy visible size without the price of one large stone. The second is movement. The small stones sit at different angles from the center stone and catch light at moments when the middle has gone dark, so something is always sparkling.
In practice a halo works best in a room with a single light source, while a solitaire already has plenty to do in bright daylight.
5. Hoops if you do not want a stone as the centerpiece
A stud sits still on the earlobe and catches light from one fixed angle. A hoop hangs free and turns with you, so the stones along the curve each catch a different part of the light: a continuous shimmer instead of one fixed point.
There is also a difference in where the attention lands. A stud keeps it at the ear, a hoop follows the curve of the face and pulls the eye toward the jawline.
The build is the same as the studs: solid 925 sterling silver, white gold plating and VVS D moissanite. So you can wear hoops and studs together.
6. What is actually in them, and what that means for wear
This is where most guides get it wrong, so we will put it plainly. The four moissanite earrings above are solid 925 sterling silver with white gold plating over the top. They are not solid white gold. Solid 925 means 92.5% pure silver with copper added, because pure silver is too soft to wear.
Against those stand the only two solid gold pieces in the store: the 14K white gold pavé studs and the 14K rose gold pavé earrings. Solid 14K is 585, meaning 58.5% gold, with no layer over it that can wear through. The stones are lab-grown diamond, round brilliant and pavé set, color G and clarity SI2, 0.084 ct in total. The head measures about 4.7 mm, so slightly smaller than the round 5 mm moissanite. Both pairs come with a GDTC certificate.
What does that mean day to day? Plating can wear through in time, and then the silver underneath shows. On a ring or a bracelet that is a real risk, because those scrape along table edges and steering wheels all day. An earring touches almost nothing: it sits still on your lobe. Of every place on your body, plating stays good longest here. If you still want metal that is the same all the way through, the diamond collection is where to look.
7. One ear or two
There is no longer any rule about what each ear is supposed to mean, so drop that argument. What matters is symmetry: two identical studs come across as a decision, a single stud as an accent that pulls the eye to that side.
If you wear glasses or a cap with a visible side panel, a pair works better. All four moissanite earrings come as a pair, so the second one is already there if you change your mind.
8. Care: it is almost always grease
When the stones look dull, it is rarely the stone. Moissanite attracts grease, and aftershave, hair product and soap collect under the setting. That is exactly where the light enters, so a thin film costs more sparkle than a scratch on top. Diamond behaves the same way.
Lukewarm water, a drop of mild soap and a soft toothbrush along the underside of the setting take it away. Dry thoroughly with a soft cloth. Do not use an ultrasonic bath and do not use anything abrasive.
For the plating there is one extra rule: apply perfume, aftershave and hair product before you put the earrings in. Store them dry in the box rather than loose in a drawer.
Four mistakes you can spot immediately
- Assuming you can tell the metal from a distance. Nobody can. Choose on shape and size, and let the material decide how long it lasts.
- Buying the 7.5 mm square as a first earring. Nearly three times the surface of the 5 mm round is a big jump. Start at 5 mm and move up once that feels normal.
- Spraying perfume or hair product over the earring. It settles under the setting, exactly where the light comes in.
- Keeping them loose in a drawer. Other metal rubs against the plating. The box is not just for show.
Where do you start?
Is this your first pair? Take the round 5 mm studs: that size goes everywhere. If you want it to be seen, the 7.5 mm square is the clearest step up. If you want as much movement in the light as possible, choose the halo or the hoops.
The moissanite collection runs on into chains, bracelets and rings in the same stone, and jewelry for him holds the rest of what goes with them.
Frequently asked questions
Are the moissanite studs solid white gold?
No. All four moissanite earrings are solid 925 sterling silver with white gold plating over the top, set with VVS D moissanite. The only solid gold earrings in the store are the two 14K pavé pairs with lab-grown diamond.
What is the difference between 5 mm round and 7.5 mm square?
Surface. A round 5 mm stone shows roughly 19.6 mm², a square 7.5 mm one comes to 56.25 mm², nearly three times as much. The diagonal of the square measures 10.6 mm.
Why does a halo look bigger than 5 mm?
The ring of small stones around the 5 mm center stone widens the whole picture, so the earring looks like a solitaire of considerably more than 5 mm. Those small stones also catch light at different angles, so something is always sparkling as you move.
Is moissanite the same as diamond?
No, moissanite is silicon carbide and a gemstone in its own right. On Mohs it scores 9.25 against 10 for diamond, its refractive index is 2.65 to 2.69 against 2.42, and its dispersion at 0.104 against 0.044.
Should I wear one earring or two?
Either works. Two identical studs make your face look optically wider and come across as a decision, a single stud pulls the eye to that side and works as an accent. All four moissanite earrings come as a pair.
How do I keep moissanite studs clean?
Lukewarm water, a drop of mild soap and a soft toothbrush along the underside of the setting, because that is where the light comes in. Dry thoroughly with a soft cloth. Do not use an ultrasonic bath and do not use anything abrasive.
