The Sweetheart Necklace Set product image 8 By Lumine

The Keepsake Necklace

S (45cm) / Paperclip Chain / 18k Gold Plated
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The Sweetheart Necklace Set product image 8 By Lumine
1/11
Bestseller

The Keepsake Necklace

4.8 (144 Reviews)

A necklace designed to carry the people and moments that matter most. Each charm clips on and off, so your necklace grows with you.

Wear It Worry-Free

Waterproof, tarnish-resistant, and made to last.

Waterproof

30-Day Easy Returns

Hassle-free exchanges on non-custom pieces.

30-day returns

Peace of Mind Guarantee

We manually review every design for errors.

Design reviewed

Step 1

Choose necklace

Size
NecklacePaperclip Chain
Material18k Gold Plated

Step 2

Personalise it with charms

50% offcharms added with your necklace

Our Top Picks
Get it by   or   with Express
No extra fees on deliveryWe cover all US import tariffs & duties. Delivered via DHL & USPS
Our promise

Wear It Worry-Free

Waterproof, tarnish-resistant, and made to last.

Waterproof

30-Day Easy Returns

Hassle-free exchanges on non-custom pieces.

30-day returns

Peace of Mind Guarantee

We manually review every design for errors.

Design reviewed

Satisfaction Remake

Not in love? We'll remake it for you.

Free remake
Size & Materials
Necklace length
50cm
Connector diameter (Paperclip Necklace)
12mm
“I put my kids' birthstones on it and I haven't taken it off since.”
Melissa R.

Melissa R.

How it works

Three steps to the perfect keepsake

  1. Choose your piece

    Pick a necklace or bracelet, then the chain, size and finish that suit them.

  2. Personalise your charms

    Add initials, names, dates or a message to as many charms as you like.

  3. Gift-ready, delivered

    It arrives in our signature gift box, ready to give.

The perfect gift

Who's it for?

Their name, their birthdate, and a birthstone for the day they changed everything.

Try: Initial Charm · Birthstone Charm

Build this set
Premium Gift Box alternate angle By Lumine

Ready to gift

Wrapped with love

Every piece arrives in our signature By Lumine gift box, finished with a satin ribbon and ready to give.

  • 5 stars: 125 (87%)
  • 4 stars: 15 (10%)
  • 3 stars: 3 (2%)
  • 2 stars: 0 (0%)
  • 1 star: 1 (1%)
A
Alexandra

So in love with my new necklace. Amazing quality!

N
Nickalia

I dont understand why i pay $129 for this neckless just for it to turn colors from sweat or water it should have just been $40 in that case.

J
Julissa

love!!

C
Colter

Clasp can be hard to get on and off.

E
Erika Yagi
A great purchase

Worth the wait on my pre-order birthstone. It made a great gift. It took longer than expected to arrive, but like i said worth the wait. I plan on buying myself my own necklace.

M
Mia C.
Honestly made me tear up

I treated myself to this after a big year and it just felt like a reminder of what matters. The detail is perfect.

Z
Zara H.
The most us gift ever

My girlfriend and I got these together and it just felt so right. Like something we'll look back on forever.

A
Amara K.
Such a thoughtful gift

Such a thoughtful gift

C
Chloe T.
Exactly what I was looking for

I bought this for myself after our anniversary. Feels special every time I put it on.

C
Christine M.
The only necklace I wear now

My daughter got me this for Mother's Day. It's the only necklace I wear now.

S
Sofia L.
Like a love letter

Love the engraving options and necklace is beautiful

N
Nadeen K.
fast shipping

shipping was super quick esp for the holidays. arrived before christmas 🎄

E
Emily S.
Gran was speechless

I got this for my grandmother's 80th birthday and she immediately started crying. Said she'd never received anything so personal.

D
Daniel W.
Simple but so meaningful

Makes a good gift

M
Marcus J.
Perfect for our anniversary

We've been together 8 years and this was my gift to her. She said it was her favourite gift I've ever given too

A
Anita P.
good gift

good gift 👍

M
Matthew M.
Better than I imagined

Ordered this for my girlfriend's birthday and she loved it. The quality is good and it arrived quickly.

E
Ethan B.
Such a good experience

Gave this to my girlfriend alongside a little note. She said it was the most romantic thing anyone had ever done for her.

P
Paula S.
small and simple

simple, sentimental and doesn’t get in the way of mum life

J
James R.
Great gift

My wife has worn this every single day since I gave it to her.

F
Fatima H.
simple and meaningful

simple, meaningful, and actually good quality. would buy again

M
Melissa R.
The necklace I never take off

I put my kids' birthstones on it and I haven't taken it off since.

S
S.A.

It is so perfect. I havent taken it off since it arrived. My little boy Flint holds onto it while feeding and its so precious.

E
Elana O.
good gift

my husband ordered this for me after our daughter was born and he got her birthstone

W
Wendi Q.
lovely gift

beautiful letter charm, will make a lovely gift. thank you. quality is good and quick delivery in a nice box.

M
Melenie A.
Fits perfectly

I like my necklaces to sit more like a choker, I messaged to ask if it could be made shorter and Jess was amazing. She adjusted it for me and it turned out perfect, it sits just how I like it. I LOVE IT!

M
Monique P.
Cried happy tears

My husband surprised me with this keepsake necklace after our daughter was born. He had it engraved with the time she was born and her little nickname (peanut). I didn’t even know how much I needed something like this until I saw it. It made me cry (happy tears!!!) Thank you to the Lumine team!

L
Lauren W.
Every charm means something

I started with one charm and now I have four. Every one means something.

S
Sylvia R.
thank you jess

i wasn’t sure if adding 5 charms was a good idea but i really wanted to add all my grand childrens’ initials but Jess really helped me out and I was able to get such a special piece. thank you jess !

A
Alyssa

Such a gorgeous necklace but hate the clasp being on the circle. So inconvenient and hard to put on sadly

A
Abbey L.
Love this!

In LOVE with this necklace!!! Bought as a gift for my mother, she absolutely adored it. The quality is amazing - I want one for myself now.

P
Palmer E.
love it!!

I couldnt decide between the october and august birthstone so i just got both. i am not even born in those months but i liked the colours. plzzz make in different shapes too

L
Lucy H.
highly recommend

the birthstone charm for my baby’s month (August) is so beautiful, just sparkles so much and all the mums at brunch said it was beautiful. highly recommend

A
Antasia C.
my first piece of mom jewelry

this is the first piece of jewelry I’ve worn since becoming a mum 🩷 thank you! x

Have questions?

Commonly asked questions

What is the Keepsake Necklace?
It's a build-your-own necklace. Pick your chain style, material, and length, then add as many charms as you like. Choose from engravable charms for names, initials, dates, or messages, or meaningful charms like birthstones and birth flowers that represent the people closest to you.
What chain styles are available?
We have two styles: Cable Chain and Paperclip Chain. Both come in 18k Gold Plated, Gold Vermeil, Sterling Silver, and Stainless Steel.
What sizes does the necklace come in?
We offer multiple lengths so you can pick the fit that works best for you, whether you like a closer fit or a longer, layered look.
Can I add charms later?
Yes! You can buy individual charms separately and clip them onto your necklace whenever you want. It's designed to grow with your story.
Do charms come at a discount when bought with the necklace?
They do! When you add charms to your necklace at checkout, they're 50% off. It's the best way to start your collection.
What materials are used?
Our necklaces are made from surgical-grade 316L stainless steel with either 18k gold PVD plating, gold vermeil, or sterling silver. All materials are hypoallergenic and safe for sensitive skin.
How long does shipping take?
Orders are crafted and shipped within 24 hours. You can find delivery timeframes in the delivery tab or more accurately at checkout.
How should I care for my necklace?
Gently clean with a soft cloth and store in a dry place. Try to avoid prolonged contact with water, perfume, or harsh chemicals to keep the finish looking its best.
What if I'm not happy with my order?
We offer hassle-free exchanges or returns within 30 days. Just reach out to our team and we'll sort it out.
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By Lumine About Us Jess
Our story

About Us

More than jewellery. It's your story.

By Lumine started with a simple frustration. Every personalised gift I found felt generic and forgettable. So I set out to create pieces that actually mean something. Necklaces engraved with your partner's handwriting, a date that changed everything, or a quiet message only you understand. Something worth holding onto.

Love,

Founder, By Lumine

Size Guide

Necklace length sizing chart
Inches (in) Centimeters (cm)
18" 45 cm
20" 50 cm
22" 55 cm

18" (45cm)

A timeless medium length, the 18" necklace falls just below the collarbone. It's a classic everyday choice and pairs beautifully with most necklines.

20" (50cm)

Our most popular length, the 20" necklace offers a classic mid-length fit that sits comfortably across the chest. It flatters nearly all necklines and body types, making it a versatile go-to for everyday wear, layering, or gifting.

22" (55cm)

Designed for a longer drop, the 22" necklace sits just above the bust. This length creates an elegant silhouette and pairs effortlessly with bolder pendants, multiple charms, or as the base layer in a stack.

Materials

18k Gold PlatedMost popular

A warm, luxe gold finish over durable stainless steel. Hypoallergenic, tarnish-resistant, and designed to be worn every day.

Best for:Gifting, daily styling, and that classic gold look without the premium price.

Stainless SteelMost durable

Extremely durable and scratch-resistant with a cool silver tone. Waterproof, low maintenance, and naturally suitable for sensitive skin.

Best for:Active lifestyles and worry-free everyday wear.

Gold VermeilPremium

A thick 18k gold layer over solid sterling silver. Offers a deeper, richer tone with a weightier, more luxurious feel.

Best for:Elevated gifting, special occasions, and heirloom-style pieces.

Sterling SilverTimeless

Solid 925 sterling silver with a bright, polished finish. Naturally skin-safe and endlessly classic.

Best for:Minimalists, everyday elegance, and silver lovers.

Made to Last · Skin-Safe · Tarnish Resistant

Personalise