There's no official rulebook for wedding guest jewellery, but there's a quiet art to it. The best wedding guest jewellery is the kind no one really notices: it simply makes an outfit feel finished, without pulling focus from where it belongs, on the two people getting married.

If you're standing in front of your jewellery box wondering what to wear as a wedding guest, here's how we'd think it through, from soft and daytime-appropriate to a little more polished for evening.

Daytime weddings (garden ceremonies, vineyard receptions, anything with natural light and long lunches) call for jewellery with the same easy, unfussy energy. Soft doesn't have to mean plain though, worn simply, even a little diamond sparkle reads as considered rather than showy.

The Tiny Diamond suite is our pick for exactly this. Each piece is set with a small, everyday lab-grown diamond, fine enough to wear all day without ever tipping into "too much":

The Tiny Diamond Studs are claw-set and offered in round, oval, pear, marquise, princess, or baguette cuts.

The Tiny Diamond Necklace fixes a delicate 2.5mm diamond onto our signature cable chain.

The Tiny Diamond Bracelet brings the same detail to the wrist.

Our Diamond Jackets clip in behind an existing stud for a touch more shine at the ear.

Worn together, the four read as a considered, matching set rather than a costume; worn on their own, any one piece is enough.

If pearls feel more like you, the Tiny Pearl suite is a lovely alternative, and just as suited to daytime. Each piece is built around a single, luminous freshwater pearl, finished with a hand-melted gold granule and wire stem, so no two pearls (or pieces) are ever quite the same: the Tiny Pearl Necklace sits at the collarbone, the Tiny Pearl Hoop Earrings pair a fine 10mm hoop with a single pearl charm, and the Tiny Pearl Bracelet brings the same detail to the wrist. Either way, it's an easy way to look polished for a wedding without looking like you tried too hard, which, for a daytime wedding, is exactly the point.

Evening weddings give you a little more licence. Under candlelight and string lights, jewellery with genuine sparkle earns its place, and this is where our signature diamond suites come in: three matching edits, each built around a different diamond cut, so you can choose the shape you love.

Each suite follows the same considered format (a pendant, a pair of studs, and an earring jacket to add more shine when you want it), all set with certified lab-grown diamonds in recycled gold.

Pear: the Lyla suite
Soft and romantic, the pear cut is the most versatile of the three.

Round: the Cleo suite
Classic and endlessly wearable, the round brilliant cut is the one that never goes out of style.

Oval: the Clara suite
Elongating and a little more modern, the oval cut suits anyone after something a touch more distinctive.

Wear a pendant and studs together for an evening wedding that calls for a little more shine, add the jackets if you want the ears to do more of the talking, or choose one piece and let your outfit do the rest. All three suites are certified lab-grown diamonds (0.5ct and above).

Bridesmaid jewellery has its own quiet rule: it should feel like you, styled to sit alongside everyone else, not a uniform. Fine, matching pieces (a delicate chain, a single stud, a thin band) tend to photograph best in group shots, and they're pieces you'll actually keep wearing long after the day itself. The Tiny Pearl suite was designed with exactly this in mind, which is why you'll often see it worn as bridesmaid gifts as much as guest jewellery.

Matching initial pieces are another lovely option, personal to each bridesmaid but consistent in style across the group:

The Tiny Letter Necklace and Tiny Letter Bracelet each feature a sliding uppercase letter charm on a fine chain. Gifted as a matching set for the whole bridal party, or one each, they read as considered rather than uniform.

For something a little more elevated, the Fixed Oval Diamond Necklace sets a solitaire oval-cut lab-grown diamond East-West along a solid gold chain. Understated enough for the day itself, and a genuine keepsake gift they'll wear long after.