Professional Ashoka© Cut Diamond Size Chart
Detailed Carat to MM / MM to Carat Ashoka© Cut Diamond Size Chart
The Ashoka© Cut Diamond is one of the most prized diamond cuts in the world. Patented by William Goldberg in 1999 and inspired by the historic Golconda Ashoka diamond, this unique elongated shape with softly rounded corners features a remarkable 62 precise facets. and is engineered to maximize fire, brilliance, and spread.
An Ashoka© diamond can appear up to 30 percent larger than a traditional emerald or radiant cuts of the same carat weight. Statistically, fewer than one percent of rough diamonds possess the desired exceptional quality and length required to become an Ashoka©, making it truly one of a kind.
Below you will find professionally compiled Ashoka© Cut Diamond carat to millimeter conversion charts along with clear, practical recommendations on depth, table, girdle, culet, and length to width ratios. These will help you confidently choose or advise on the perfect Ashoka© diamond every time.
Ashoka© Cut Diamond MM Size Chart / CT Conversion Chart
0.25 - 5.00 cts
Copyright © AVA DIAMONDS
| ASHOKA © DIAMOND CARAT WEIGHT | ASHOKA © DIAMOND MM LENGTH | ASHOKA © DIAMOND MM WIDTH |
|---|---|---|
| 0.25 | 4.83 - 5.08 mm. | 3.02 - 3.27 mm. |
| 0.3 | 5.13 - 5.38 mm. | 3.21 - 3.46 mm. |
| 0.4 | 5.64 - 5.89 mm. | 3.53 - 3.78 mm. |
| 0.5 | 6.08 - 6.33 mm. | 3.80 - 4.05 mm. |
| 0.6 | 6.46 - 6.71 mm. | 4.04 - 4.29 mm. |
| 0.7 | 6.80 - 7.05 mm. | 4.25 - 4.50 mm. |
| 0.8 | 7.11 - 7.36 mm. | 4.45 - 4.70 mm. |
| 0.9 | 7.40 - 7.65 mm. | 4.62 - 4.87 mm. |
| 1 | 7.66 - 7.91 mm. | 4.79 - 5.04 mm. |
| 1.2 | 8.14 - 8.39 mm. | 5.09 - 5.34 mm. |
| 1.3 | 8.36 - 8.61 mm. | 5.23 - 5.48 mm. |
| 1.4 | 8.57 - 8.82 mm. | 5.36 - 5.61 mm. |
| 1.5 | 8.77 - 9.02 mm. | 5.48 - 5.73 mm. |
| 1.6 | 8.96 - 9.21 mm. | 5.60 - 5.85 mm. |
| 1.7 | 9.14 - 9.39 mm. | 5.72 - 5.97 mm. |
| 1.8 | 9.32 - 9.57 mm. | 5.83 - 6.08 mm. |
| 1.9 | 9.49 - 9.74 mm. | 5.93 - 6.18 mm. |
| 2 | 9.65 - 9.90 mm. | 6.04 - 6.29 mm. |
| 2.2 | 9.96 - 10.21 mm. | 6.23 - 6.48 mm. |
| 2.5 | 10.40 - 10.65 mm. | 6.50 - 6.75 mm. |
| 2.7 | 10.67 - 10.92 mm. | 6.67 - 6.92 mm. |
| 3 | 11.05 - 11.30 mm. | 6.91 - 7.16 mm. |
| 3.5 | 11.63 - 11.88 mm. | 7.27 - 7.52 mm. |
| 4 | 12.16 - 12.41 mm. | 7.60 - 7.85 mm. |
| 4.5 | 12.65 - 12.90 mm. | 7.91 - 8.16 mm. |
| 5 | 13.10 - 13.35 mm. | 8.19 - 8.44 mm. |
Ava Diamonds
How an Ashoka© Cut Diamond Looks Like on Hand
Few diamonds make as strong an impression on the finger as an Ashoka© cut. Its patented elongated rectangular shape with softly rounded corners was engineered for exceptional spread, delivering generous coverage along the length of the finger while creating a graceful lengthening effect that feels refined and sophisticated.
The carefully arranged 62 facets produce rich, vibrant fire and brilliance that flows dynamically along the stone. Thanks to this unique design, an Ashoka© often appears significantly larger, up to 30 percent bigger, as previously stated compared to a traditional radiant or emerald cut of the same carat weight. The result is an impressive yet elegant profile that stands out beautifully in real life.
If you’ve ever wondered how Ashoka© looks like when worn on the finger, the following image should prove a valuable visual aid, from 0.75 to 3.00 carats.
What are the Ideal Proportions of an Ashoka© Cut?
The Ashoka® cut (patented by William Goldberg) does not publish traditional “ideal proportions” like a round brilliant diamond for example, such as its crown/pavilion angles or table %). Those exact facet angles and measurements are proprietary trade secrets to protect the patent and exclusivity, and as previously stated only <1% of diamond rough qualifies to be cut into a true Ashoka®.
What is the Ideal Diamond Depth and Table for the Ashoka® Cut?
The length to width ratio is one of the most defining features of the Ashoka© Cut Diamond. This cut is intentionally elongated to create sophisticated finger coverage, impressive spread, and a striking visual presence. The ideal ratio centers around 1.60. While personal taste always plays a factor, the ratios below have consistently proven to deliver the most balanced, elegant, and desirable appearance that sets an Ashoka© apart from every other shape.
| EXCELLENT | VERY GOOD | GOOD | |
|---|---|---|---|
Table - % | 56% - 62% | 54% - 65% | 52% – 68% |
Depth - % | 59% - 64% | 57% - 66% | 55% - 68% |
Girdle | Thin to Medium | Very Thin to Slightly Thick | Very Thin to Thick |
Culet | None to Small | None to Very Small | Small |
What is the Ideal Ashoka© Cut Diamond Length to Width Ratio?
| EXCELLENT | VERY GOOD | GOOD | |
|---|---|---|---|
| Length To Width Ratio | 1.55 – 1.65 | 1.45 – 1.75 | 1.35 – 1.85 |