Professional Shield Cut Diamond Size Chart
Size Comparison Tool for Shieldt Shaped Diamonds From CT to MM / MM to CT
Ever wondered if there’s a shortcut or a reliable size chart for the CT to MM conversion of Shield Cut Diamonds? You’ve come to the right place
The following diamond size chart was created to help you in the conversion of shield cut diamonds in a reliable, as well as time saving manner. It was developed by gemologists and traders, and since we use it ourselves, we know very well how helpful it can be, and are more than happy to share.
Shield Cut Diamond Conversion Chart 0.13 - 1.45 ctw
Below is our go-to conversion chart which we use for quick conversions of shield shaped diamonds. Due to their primary use as pairs we measure them by pair total weight as you can see from our chart. Ranging from pairs as small as 0.13 ctw up to larger 1.45 ctw.
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| PAIR AVERAGE TOTALE WEIGHT | LENGTH MM SIZE | WIDTH MM SIZE |
|---|---|---|
| 0.13 - 0.17 ct tw | 3.60 - 4.10 mm. | 3.20 - 2.90 mm. |
| 0.18 - 0.22 ct tw | 4.20 - 4 .40 mm. | 3.60 - 4.00 mm. |
| 0.23 - 0.27 ct tw | 4.30 - 5.10 mm. | 3.90 - 4.80 mm. |
| 0.28 - 0.37 ct tw | 4.80 - 5.60 mm. | 4.20 - 5.00 mm. |
| 0.38 - 0.47 ct tw | 5.20 - 5.80 mm. | 4.80 - 5.30 mm. |
| 0.48 - 0.59 ct tw | 5.40- 6.00 mm. | 5.00 - 5.80 mm. |
| 0.60 - 0.68 ct tw | 5.80 - 6.30 mm. | 5.40- 6.00 mm. |
| 0.70- 0.78 ct tw | 6.20- 6.80 mm. | 6.10 - 6.80 mm. |
| 0.80 - 0.89 ct tw | 6.70 - 7.40 mm. | 6.50 - 7.20 mm. |
| 0.90 - 0.98 ct tw | 7.20 - 7.80 mm. | 6.30 - 7.30 mm. |
| 1.00 - 1.10 ct tw | 7.60 - 8.50 mm. | 6.70 - 7.60 mm. |
| 1.18 - 1.45 ct tw | 8.00 - 8.90 mm. | 7.20 - 8.10 mm. |
Ava Diamonds
Shield Cut Diamond on Hand
A shield cut diamond instantly catches the eye when placed on the finger thanks to its unique five sided geometric form. The flat or gently curved top edge combined with sloping sides that taper to a point creates a bold, heraldic outline reminiscent of a medieval shield, giving the hand a strong yet artistic presence.
This shape offers excellent coverage across the finger while its pointed bottom adds a directional flow that feels both modern and distinctive. The faceting — often a mix of step and brilliant elements produces crisp, reflective flashes that highlight the cut’s angular symmetry. Many people notice how well proportioned shield cuts appear larger than their carat weight in real life, delivering impressive visual impact without feeling heavy.
Many people love how it appears even larger and more dazzling in real life than the carat weight suggests, making it one of the most popular choices for engagement rings and statement jewelry.
