Bestsellers
Whether you're buying a fine jewellery ring set with a diamond or a coloured gemstone, we understand the importance of getting the size right.
Download Size Guide
|
Internal Diameter
mm
|
Size
|
US
|
|---|---|---|
14.70 |
H | 3 ¾ |
14.90 |
H½ | 4 |
15.10 |
I | 4 ¼ |
15.30 |
I½ | 4 ½ |
15.50 |
J | 4 ¾ |
15.70 |
J½ | 5 |
15.90 |
K | 5 ¼ |
16.10 |
K½ | 5 ½ |
16.30 |
L | 5 ¾ |
16.50 |
L½ | 6 |
16.70 |
M | 6 ¼ |
16.90 |
M½ | 6 ½ |
17.10 |
N | 6 ¾ |
17.30 |
N½ | 7 |
17.40 |
O | - |
17.50 |
O½ | 7 ¼ |
17.70 |
P | 7 ½ |
17.90 |
P½ | 7 ¾ |
18.10 |
Q | 8 |
18.30 |
Q½ | 8 ¼ |
18.50 |
R | 8 ½ |
18.70 |
R½ | 8 ¾ |
18.90 |
S | 9 |
19.10 |
S½ | 9 ¼ |
19.30 |
T | 9 ½ |
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.
Hollowed Out Tank
Price varies by carat weight and material

Hollowed Out Tank
Yellow Gold and Diamond Ring
$3,694