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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

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Discover The Promise Co. collection - meaningful jewellery designed to celebrate every kind of promise. From our signature rings and personalized pieces to timeless necklaces and everyday favourites, each design is made to mark the people, moments and stories that matter most.

30 Day Returns
Luxury packaging & promise card included
LIFETIME SPARKLE
5 YEAR WARRANTY

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48 products

Bestseller
18k Gold promise ring with a diamond on a beige fabric background
18k Gold promise ring with a diamond on a beige fabric background
Promise Oval Ring Sale price$230.00
Bestseller
18k Gold promise ring with a diamond on a beige fabric background
18k Gold promise ring with a diamond on a beige fabric background
Promise Oval Ring Sale price$230.00
Top Rated
Promise Cluster Ring Sale price$188.00
Top Rated
Promise Cluster Ring Sale price$188.00
Custom Toi et Moi Ring Sale price$259.00
Promise Oval Cluster Ring Sale price$234.00
Promise Oval Cluster Ring Sale price$234.00
Emerald Cut Eternity Ring Sale price$201.00
Emerald Cut Eternity Ring Sale price$201.00
Pear Cut Toi et Moi Ring Sale price$240.00
Pear Cut Toi et Moi Ring Sale price$240.00
Hidden Birthstones
Engravable Oval Promise Ring Sale price$268.00
Promise East West Ring Sale price$173.00
Promise East West Ring Sale price$173.00
Hidden Halo
Promise Sparkle Oval Ring Sale price$249.00
Hidden Halo
Promise Sparkle Oval Ring Sale price$249.00
Hidden Halo
Promise Radiant Cut Pave Ring Sale price$249.00
Hidden Halo
Promise Radiant Cut Pave Ring Sale price$249.00
Viral Pinky Ring
Promise Heirloom Birthstone Ring Sale price$278.00
Engraved Band
Marquise Engraved Band Promise Ring Sale price$249.00
Engraved Band
Marquise Engraved Band Promise Ring Sale price$249.00
Promise Oval Halo Ring Sale price$249.00
Promise Oval Halo Ring Sale price$249.00
Graduated Promise Band Sale price$268.00
Most Gifted
Heart Shape Toi et Moi Promise Ring Sale price$188.00
Most Gifted
Heart Shape Toi et Moi Promise Ring Sale price$188.00
Custom Marquise Engraved Band Promise Ring Sale price$268.00
Promise Round Cut Pave Ring Sale price$230.00
Promise Round Cut Pave Ring Sale price$230.00
Up to 3 Birthstones
Custom Pave Birthstone Ring Sale price$150.00
Promise Marquise Ring Sale price$230.00
Promise Marquise Ring Sale price$230.00
Promise Heart Solitaire Ring Sale price$184.00
Promise Heart Solitaire Ring Sale price$184.00
Promise Emerald Solitaire Ring Sale price$211.00
Promise Emerald Solitaire Ring Sale price$211.00
Custom Initial & Birthstone Necklace Sale price$287.00
East West Marquise Pinky Ring Sale price$207.00
East West Marquise Pinky Ring Sale price$207.00
Hidden Birthstones
Mens Engraveable Birthstone Promise Ring Sale price$278.00
Promise Pear Cut Solitaire Ring Sale price$201.00
Promise Pear Cut Solitaire Ring Sale price$201.00
Promise Emerald Cut Ring Sale price$221.00
Promise Emerald Cut Ring Sale price$221.00
Close up promise ring on hand dainty 18k gold design with marquise stone
Close up promise ring on hand dainty 18k gold design with marquise stone
Dainty Promise Ring Band Sale price$131.00
Close up promise ring on hand dainty 18k gold design with marquise stone
Close up promise ring on hand dainty 18k gold design with marquise stone
Dainty Promise Ring Band Sale price$131.00
Promise Curve Pear Ring
Promise Curve Pear Ring
Promise Curve Pear Ring Sale price$188.00
Selling Out
Promise Pink Toi et Moi Ring Sale price$240.00
Pavé Pinky Promise Ring Sale price$278.00
Promise Love Ring
Promise Love Ring
Promise Love Ring Sale price$184.00
Promise Love Ring Sale price$184.00
Limited Edition
Pink Marquise Promise Ring Sale price$249.00
Birthstone Pear Ring Sale price$207.00
Hidden Stones
Mens Rounded Promise Ring Sale price$259.00
Hidden Stones
Mens Rounded Promise Ring Sale price$259.00
Hidden Birthstones
Engravable Marquise Promise Ring Sale price$268.00
Oval 6-Claw Cigar Band Sale price$345.00
Promise Puffy Heart Necklace Sale price$150.00
Promise Puffy Heart Necklace Sale price$150.00
Full Pave Eternity Ring Sale price$131.00
Full Pave Eternity Ring Sale price$131.00
Cushion Cut Cigar Band Ring Sale price$345.00
Gifts for Men
Unisex Signet Promise Ring Sale price$188.00
Gifts for Men
Unisex Signet Promise Ring Sale price$188.00
Interlocking Trinity Ring Band Sale price$230.00
Interlocking Trinity Ring Band Sale price$230.00
New
Heart Charm Promise Ring Sale price$188.00
New
Heart Charm Promise Ring Sale price$188.00
Promise Trinity Necklace Sale price$169.00
Promise Trinity Necklace Sale price$169.00
Pink Heart Cluster Band Sale price$169.00
Blue Heart Cluster Band
Blue Heart Cluster Band
Blue Heart Cluster Band Sale price$169.00
Promise Trinity Silk Cord Bracelet Sale price$144.00
Promise Trinity Silk Cord Bracelet Sale price$144.00
Promise Trinity Silk Cord Bracelet Sale price$144.00
Promise Trinity Silk Cord Bracelet Sale price$144.00
Promise Oval & Emerald Cut Wrap Ring Sale price$230.00
Promise Oval & Emerald Cut Wrap Ring Sale price$230.00
Promise Astral Flash Ring Sale price$150.00
Promise Astral Flash Ring Sale price$150.00

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