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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 - UK

Delivery

Delivery & Shipping - UK

Orders are shipped Monday–Friday.

Any orders placed after 1pm (local warehouse time) 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).

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
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

Friendship Rings

Looking for the perfect bestie gift? Our Friendship Rings are the ultimate symbol of loyalty and love. From dainty matching bands to unique promise rings for best friends, each piece is crafted to celebrate a bond that lasts forever.

24 Hour Delivery
Luxury packaging & promise card included
LIFETIME SPARKLE
5 YEAR WARRANTY

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Cosmopolitan Loves
East West Half Bezel Marquise Ring elegant as a bestie ring or pinky promise ring
East West Half Bezel Marquise Ring elegant as a bestie ring or pinky promise ring
East West Half Bezel Marquise Pinky Ring Sale price£108.00
Cosmopolitan Loves
East West Half Bezel Marquise Ring showcasing the horizontal marquise cut – ideal as a bestie ring or unique promise ring.
East West Half Bezel Marquise Ring showcasing the horizontal marquise cut – ideal as a bestie ring or unique promise ring.
East West Half Bezel Marquise Pinky Ring Sale price£108.00
Promise Curve East West Pear Pinky Ring Sale price£98.00
18ct gold vermeil emerald cut eternity ring – a timeless wedding band and affordable emerald cut promise ring.
18ct gold vermeil emerald cut eternity ring – a timeless wedding band and affordable emerald cut promise ring.
Emerald Cut Eternity Ring Band Sale price£105.00
Emerald cut eternity band stacked with other rings – versatile as a wedding band or unique promise ring
Emerald cut eternity band stacked with other rings – versatile as a wedding band or unique promise ring
Emerald Cut Eternity Ring Band Sale price£105.00
Top Rated
The Promise Co. Cluster band diamond simulant ring. In 18ct Gold Unique handcrafted promise ring with alternating marquise stones – affordable stacking band in gold
The Promise Co. Cluster band diamond simulant ring. In 18ct Gold Unique handcrafted promise ring with alternating marquise stones – affordable stacking band in gold
Promise Cluster Ring Sale price£98.00
Top Rated
The Promise Ring Co. Cluster band diamond simulant ring. In Sterling Silver. Promise Cluster Ring perfect stacking bands – meaningful gift for her
The Promise Ring Co. Cluster band diamond simulant ring. In Sterling Silver. Promise Cluster Ring perfect stacking bands – meaningful gift for her
Promise Cluster Ring Sale price£98.00
Dainty Promise Ring Band Sale price£68.00
Dainty Promise Ring Band Sale price£68.00
New
Dangle Heart Charm Ring, 18ct Gold vermeil unique ring for her.
Dangle Heart Charm Ring, 18ct Gold vermeil unique ring for her.
Heart Charm Promise Ring Sale price£98.00
New
Dangle heart charm ring silver dupe for dakota Johnson ring in materialist
Dangle heart charm ring silver dupe for dakota Johnson ring in materialist
Heart Charm Promise Ring Sale price£98.00
perfect dainty heart shape promise ring for her Simple heart ring gift for her
perfect dainty heart shape promise ring for her
Simple heart ring gift for her
Promise Heart Solitaire Ring Sale price£96.00
affordable best promise rings, 1ct heart shape ring
Simple heart ring gift for her
affordable best promise rings, 1ct heart shape ring
Simple heart ring gift for her
Promise Heart Solitaire Ring Sale price£96.00
Most Gifted
Heart Shape Toi et Moi Promise Ring Sale price£98.00
Most Gifted
Heart Shape Toi et Moi Promise Ring Sale price£98.00
Gifts for Men
Unisex signet ring with a rectangular face in rhodium-plated sterling silver – a unique signet ring and modern men’s promise ring by The Promise Co.
Unisex signet ring with a rectangular face in rhodium-plated sterling silver – a unique signet ring and modern men’s promise ring by The Promise Co.
Unisex Signet Promise Ring Sale price£98.00
Gifts for Men
Rectangular signet ring worn on female hand – modern unisex promise ring ideal for everyday wear or meaningful gift.
Rectangular signet ring worn on female hand – modern unisex promise ring ideal for everyday wear or meaningful gift.
Unisex Signet Promise Ring Sale price£98.00
Mixed Stone Pink Heart Eternity Band Sale price£88.00
Mixed Stone Blue Heart Eternity Band Sale price£88.00

Friendship Rings

Friendship rings are a meaningful way to celebrate the connection between two people. Whether it’s a lifelong friendship, a shared journey or an unspoken bond, a friendship ring represents loyalty, trust and the moments that define your relationship.

At The Promise Co, friendship rings are designed to capture the same spirit as a promise. While often associated with romance, a promise can exist in many forms, and friendship promise rings reflect that idea through designs that feel personal, thoughtful and lasting.

friendship rings

The meaning behind friendship promise rings

A friendship promise ring represents a commitment between two people that goes beyond a single moment. It symbolises trust, support and the kind of connection that remains constant over time.

For many, friendship promise rings represent:
A lifelong bond between best friends

  • A shared history and meaningful experiences
  • A promise to always support one another
  • A reminder of a connection that doesn’t change

Unlike traditional jewellery, friendship rings often carry a deeper emotional meaning, making them one of the most personal gifts you can give.

Bestie rings designed to be shared

Bestie promise rings are a modern expression of friendship, often chosen as matching or complementary pieces. Some prefer identical rings, while others choose styles that connect in a more subtle way.

This flexibility allows each person to express their own style while still sharing something meaningful.

Whether worn every day or saved for special moments, bestie rings are a reminder of a bond that is always there.

At The Promise Co, every design is created with meaning in mind, ensuring each ring reflects the connection it represents.

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