Small signet ring in silver, worn

21st Birthday Jewelry

The traditional gift at 21 is the key to the door. Ours is the piece she'll still be wearing at 40. 21st birthday jewelry should mark the year: a signet with her initials, pearl studs, a slim ring or a charm engraved with the date. Everything here is made by hand in our London workshop in solid silver or gold. Pick the kind of thing, and we'll show you five, and the one we'd choose. Prices are on every piece.

Pearl studs and earrings

21st birthday jewelry: pearl studs and earrings

Real pearls on solid silver. Small enough for every day, good enough to keep.

Budget
Betty Pearl Studs

The one we'd choose

Betty Pearl Studs

Real pearls on solid silver posts, the studs that go from the 21st party to every interview, wedding and dinner after it. The safest good gift on this page.

from $235

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A signet with her initials

21st birthday jewelry: a signet with her initials

The traditional gift at 21 is the key to the door. A signet with her initials is the modern version: the piece that says she's an adult now.

Budget
Small Signet Ring

The one we'd choose

Small Signet Ring

A signet with her initials, hand-engraved in the workshop, made to be worn for the rest of her life. At 21 it's the key to the door in a form she'll actually wear.

from $575

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A necklace or charm to mark the year

21st birthday jewelry: a necklace or charm to mark the year

A small solid heart, a single pearl, or a charm with the date on the back. Worn every day without ceremony, and kept.

Budget
Dainty Heart Necklace

The one we'd choose

Dainty Heart Necklace

A small solid heart on a fine chain, engraved on the back with the date. It lives under a collar, gets worn every day, and never gets put in a drawer.

from $465

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A women wearing the Blanche range of pearl and silver jewellery. She is wearing earrings and a necklace. She is also wearing an off the shoulder white top and has long black hair and red lipstick.
A Woman wearing a Thames wood pebble necklace on a silver chain. She has an open necked shirt in light pink.
Made in our London workshop, worn every day
A jeweler at the bench in our London workshop

Engraving

Add a date, or her initials

Almost everything here can be engraved by hand in our workshop: the date, her initials, the thing you always say to her. Hidden on the inside of a ring or bangle, or on the back of a heart or charm. From $10 an engraving. Engraved pieces can't be returned, so if you're unsure of the size, order it plain and we'll engrave it together afterwards.

See engraving styles
The heartbreak heart: a hand-painted plaster heart they have to break open to reach the piece

The giving

Seal it inside a heart she has to break

We wrap the piece in soft cloth and seal it inside a plaster heart, hand painted in the color you choose. To reach what's inside, she has to crack it open.

Add the heartbreak heart

In time, and on time

Buying for a date?

Ready-to-ship pieces dispatch fast; made-to-order takes up to 4 weeks. Call us with your deadline and we'll tell you honestly.

Shipping

US prices include duties, taxes and DHL delivery.

Made here

Dispatched direct from our London workshop.

Having misunderstood where my daughter wanted to buy a skull ring as her birthday present, I made an appointment at Stephen Einhorn. I'm very glad I got it wrong! A wonderful experience having a very beautiful ring made.

Simon Watt, Google review, May 2026

My second time buying from Stephen Einhorn. Faultless, efficient and very friendly service. And most importantly, my wife loves the piece of jewelry as much as the last one!

at6810, Google review, January 2025

Great service, beautiful jewelry with an extra special engraving to make our gift even more personal. Thank you!

Claire Murphy, Google review, June 2025

Questions about 21st birthday jewelry

What if I don't know her size?

Earrings, necklaces and charms have no size, and the bangles and bracelets fit most wrists. If you're buying a ring, make your best guess and order; if it's wrong, return it unworn within 14 days and we'll exchange it for the right size.

Can it be returned if it isn't right?

Yes. Returned unworn and in its packaging within 14 days of receipt, for an exchange, credit note or refund. Engraved pieces can't be returned, so if you're unsure, order it plain and we'll engrave it afterwards.

Will it arrive in time for the birthday?

Pieces in stock leave the workshop within days. Made-to-order and engraved pieces take up to 4 weeks. If you're close to the date, call +44 20 7359 4977 before you order and we'll tell you honestly.

All 21st Birthday Jewelry

66 pieces

21st birthday jewellery, designed and made by hand in our London workshop. The traditional gift at 21 is the key to the door; ours is the piece she'll still be wearing at 40. Pearl studs, a small signet with her initials, a slim ring or a charm engraved with the year. The wrong size is ours to fix.

Rated 5.0 out of 5 from 270 Google reviews