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Luxury Packaging with Every Order

Luxury Packaging with Every Order

Every order arrives beautifully presented with our luxury packaging:

A signature velvet pouch designed to protect your jewellery and be kept forever

A Promise Card ready for you to write your own special promise, to a loved one, a friend... yourself!

Thoughtful. Gift-ready. Worth paying for but included free.

Delivery & Shipping

Delivery

Delivery & Shipping

Orders are shipped Monday–Friday.

Any orders placed after 1pm (MST) on Friday will not be shipped until Monday.

UK Shipping (from our UK warehouse)

Royal Mail 48 Hours: Delivery in 2 working days.

Royal Mail 24 Hours: Delivery in 1 working day (order before 1pm GMT to receive your parcel the next working day).

USA Shipping (from our USA warehouse)

Orders ship via DHL Express Domestic. Delivery takes 1–4 working days, depending on your shipping zone.

All tariffs and import fees are already covered by The Promise Ring Co. LTD, so there are no additional customs charges for US customers.

International Shipping (all other countries from our UK warehouse)

Europe: 2–11 business days.

Rest of the World (Canada, Australia, etc.): 3–17 business days.

Please note: Delivery times are estimates and may occasionally be extended due to customs delays, courier disruptions, or UK bank holidays.

Our Size Guide

Our Size Guide

Not sure on your sizing? Need to secretly measure for a loved one? Find our handy printable PDF.

US/Promise Co Diameter (mm) Circumference (mm) UK Europe
2 13.3 41.7 D ½ 42
3 14.1 44.2 F ½ 44
4 14.9 46.8 H ½ 47
5 15.7 49.3 J ½ 49.3
6 16.5 51.9 L ½ 51.9
7 17.3 54.5 N ½ 54.4
8 18.1 57 P ½ 57
9 18.9 59.5 R ½ 59.5
10 19.8 62.1 T ½ 62.1
11 20.6 64.6 V ½ 64.6
12 21.4 67.2 X ½ 67.2
13 22.2 70 Z ½ 70

Promise Heirloom Birthstone Ring

Sale price$282.00

Step 2

Metal & Sizing

Precious Metal: 14k Gold Vermeil
Size:

Unsure on sizing? — Size Guide Here

Step 3

Customisation

Customise your ring
Promise Heirloom Birthstone Ring

Centre Stone Select a stone

Halo Stones Select a stone

Free

Case-sensitive. Letters, numbers & special characters. No emojis. 0/8 Characters

Delivery

Made to Order: Ships in 10 - 15 Business Days
Click for more info

  • Hand-Set Stones
  • Anti-Tarnish
  • 5 Year Warranty
  • Gift-Ready Packaging
Review your ring
  • 5 stars: 49 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
V
Vy-Trinh Nguyen
Absolutely gorgeous

I have received so many compliments on the ring already! I love how I have something that can commemorate me and my daughter. I’m glad I stumbled on their page because I’ve been looking for something like this for awhile

G
Gina Malagoli
Exactly as advertised!

I mean, there’s not much more to say! My piece came exactly as expected, I love it!

E
Emma Murdock
The missing piece

This pinky promise ring was the missing piece in my collection. As a newly engaged fiancée I was on the hunt for a piece that reminded me of my partner but something with even more meaning than a diamond, and truly this piece is it. With both of our birthstones as the focal point of the ring and then our initials engraved inside, I am wearing a piece of ‘us’ every day, with more colour and more unique meaning. I am obsessed with this ring & this brand. Thank you so so much.

A
Anonymous
I love my ring

Everyone has been asking me where I got my pinky birth stone ring from. It is so pretty and feels comfortable too.

J
Janette Croft

Hi, I received my ring on Friday just in time for my daughter’s birthday which was yesterday, it’s absolutely stunning and my daughter loves it, thank you so much. I got her the gold ring with all sapphire stones,as that’s her birthstone, it’s so sparkly and pretty. The photo doesn’t do it enough justice !

G
Gemma
Perfect new mum present

I wanted something a little different to a necklace or bracelet to mark the birth of my December baby, I knew this was the perfect piece! So special how you can custom make with any birthstone combo or simply by your colours of choice. Also amazing size range as I struggle to find something small enough for my pinky finger!

L
Lydia
Lovely ring!

I received this ring after the birth of my child. It has his birth stone and is exactly what I wanted! Great customer service who helped my with sizing to get the perfect fit and product, highly recommend!

A
Anonymous
Beautiful ring

It’s more than what I imagined!! It’s so beautiful!! Already thinking on my next one!!

A
Alex Tracey
Just perfect!

I’d been looking for a pinky ring FOREVER when I stumbled on The Promise Co. The heirloom ring is beyond perfect! The size guide was really helpful and meant my new ring fits like a dream, I love how I was able to personalise it and it’s such beautiful quality. I’m obsessed 💖

K
Katy Truelove
Perfect in every way

My ring is simply, perfect. The pale pink birth stone surrounding by clear stones on a gold band, means I receive daily compliments on its beauty. Although not purchased as a friendship token, this is a treat for myself as a reminder that self care and kindness are both needed and offered.

H
Hannah
Gorgeous ring

Looks beautiful. Fits perfect. Packaging and engraving great. Throughly recommend

A
Anonymous
Beautiful addition

I have purchased a few rings from The Promise co. All are amazing but this one is so on point. Beautiful design and love that you can personalise it however you want. Had so many comments about it!

A
Anonymous
Emotional

So bespoke and extremely sentimental.

F
F.w

I got this as my push present (to myself!!) and an heirloom to pass down to my little girl. I got October in the middle then august outside which is the perfect shade of apple green - now I want another for me and my husbands stones!

L
Lucy

After seeing this pic on Tara Mays story I knew I had to get these with my best friend as we both turn 30 this year. We both got a ruby with diamond and it is absolutely perfect!!

E
Emfeagan

I absolutely LOVE it. It is stunning & I’ve never seen another ring like it. The fact you can customise both the middle stone, along with the halo is such a lovely idea. I’ve had it less than 24 hours, & have had so many compliments on it already. Love it so much I’m ordering another one with my son’s birthstone.

J
Jade
Outstanding !

I have ordered a few pieces from this company & they never fail to provide such beautiful pieces & the quality is outstanding !
Customer service is always super & when I received my custom ring I was blown away it’s the perfect shade of gold , made with such great detail & is so sparkly . This will be my replacement engagement ring as I needed something in a more flatter setting for everyday wear less likely to get knocked but something that was still special to me & this ticks all the boxes would highly recommend this company I’m so grateful to have found them !

L
Lucy

I cannot believe how amazing the quality is of this ring. I have some other pieces from the promise co and when I saw this design I knew I had to have it. I chose the stone that matches our anniversary month as we had a big milestone this year. It looks like it cost 10x as much as it did and came quicker than I expected considering it's custom made, in about two weeks. So fun and special, will be getting a necklace next!

R
Rosie
Really beautiful ring

Couldn’t be happier with my ring - it’s very sparkly, fits perfectly and loved the customisation!

A
Anonymous

Perfect gift!!

A
Anonymous
Great 💫

The ring is very nice, I got it in 2 different colors, excellent service

A
Andrea Celeste
Love love love - best present ever

The quality is amazing, and the whole experience, from the beautiful packaging to receiving the product, was absolutely lovely. You can really tell how much care and attention to detail has gone into everything. The product itself exceeded my expectations, and I’m so happy with my purchase. I would definitely recommend it and will be coming back for more!

A
Anonymous
Loved

Beautiful quality for the price!

M
Michaela Yiallouri
Best anniversary present ever

Such a thoughtful anniversary present . The ring is beautiful the colour combination of the stones is really lovely. Packaged really carefully

what makes us different

Our pieces are symbols of love, commitment, and the moments that matter most.

That's why we obsess over every detail.
So each and every piece is made to be kept forever.

Every piece is hand-set by our master jewellers, backed by a 5-year warranty, and made to the best-in-class standards of the National Association of Jewellers.

A promise you can trust.