Bestsellers
Whether you’re buying a silver or gold ring, a ring set with a ruby or aquamarine, we understand the importance of getting the ring size right.
Download Size Guide
|
Internal Diameter
mm
|
UK
|
US
|
EU
|
JAPAN
|
|---|---|---|---|---|
|
15.30
|
J | 4 ½ | 8.60 | 9 |
|
15.70
|
K | 5 | 9.90 | 10 |
|
16.10
|
L |
5 ½
|
11.20 | 11 |
|
17.35
|
O | 7 | 15.10 | 14 |
|
18.75
|
R | 8 ½ | 18.90 | 17 |
|
19.56
|
T | 9 ½ | 21.40 | - |
|
20.37
|
V
|
10 ½
|
24.00
|
23
|
Every diamond we set is graded by the GIA and hand-selected by our team for its cut, colour and clarity. This guide covers what to know when choosing your diamonds, including natural or lab-grown and shape.
Our standards
We work only with diamonds graded Excellent or Very Good for cut, and within the D-J colour range, ensuring brilliance and clarity across every piece, from a single stone to a fully pavé setting.
Natural or lab-grown
Our collections are set with natural diamonds as standard. Lab-grown diamonds, chemically and visually identical to natural stones, are available on request. Please contact our team or book an appointment to discuss options.
Choosing a shape
Shape is the outline of a diamond, from a round brilliant to a pear or marquise. Each of our designs is built around a specific shape or combination of shapes to complement its form. If you would like to explore a different shape for a piece you love, our team is happy to help and discuss options.
Carat
Carat refers to a diamond's weight, not its size. Where a design offers a choice of carat, this is reflected in the product options. For pavé and multi-stone settings, total carat weight reflects the combined weight of all diamonds set.
Certification
Every diamond we set is accompanied by a certificate, verifying the cut, colour and clarity graded. Each piece also comes with a Completedworks certificate of authenticity.
Post‐Capital
Engraving
Add a personal touch to your piece with custom engraving.
Note: Personalised items are made to order and cannot be returned or refunded.


Post‐Capital
Gold Plated Ring
$242





Post‐Capital
Platinum Plated Ring
$242


Post‐Capital Part III
Gold Plated Ring
$215





Post‐Capital
Set of 3 Gold Plated Stacking Rings
$588