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.

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).

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

Round Cut Promise Rings

Classic and brilliant, the Round cut is the world’s most popular diamond shape, loved for its perfect symmetry and unmatched sparkle. It’s the cut that never goes out of fashion.