Diamond cut: round
Indulge in the enchanting allure of round diamonds, cherished for their brilliant facets and captivating sparkle. They epitomize eternal elegance and sophistication, leaving an everlasting impression that spans through generations.
History
Diamond cutting can be traced back thousands of years. Perhaps the most revolutionary event occurred during the 15th century in Bruges, Belgium. Here, a brilliant cut was developed, aiming to maximize the diamond's beauty with optimal light reflection. Through symmetrical planes, the characteristic sparkle that characterizes well-cut diamonds is created.
The Concierge recommendation…
Color
A round brilliant cut diamond hides its natural color well, primarily when graded Excellent. We recommend a color between G-I when setting the diamond in white metal, such as platinum or white gold. If the setting is of warm metal, for example, yellow gold, we recommend a color grading between H-K. This recommendation is based on the fact that diamonds reflect and absorb their surrounding colors.
Clarity
Inclusions are difficult to spot in a round diamond because of its brilliance. Because of this, we recommend a clarity grading between SI1 and VS2. For stones of 1.0 carat and above, opt for a higher clarity grading to make sure the diamond is 100% eye-clean.
Cut
When purchasing a diamond, it is essential to prioritize the stone’s cut over carat weight, regardless of the budget. You should always aim for a diamond with an Excellent cut grade, as it reflects more light and appears more prominent. Choosing a smaller diamond with a better cut than a larger diamond with a lower cut grade is better.
Round brilliant cut diamonds size chart
| MM | CARAT WEIGHT |
|---|---|
| 1.0 | 0.005 |
| 1.3 | 0.01 |
| 1.5 | 0.015 |
| 1.7 | 0.02 |
| 1.8 | 0.025 |
| 2.0 | 0.03 |
| 2.1 | 0.035 |
| 2.2 | 0.04 |
| 2.4 | 0.05 |
| 2.5 | 0.06 |
| 2.7 | 0.07 |
| 2.8 | 0.08 |
| 2.9 | 0.09 |
| 3.0 | 0.10 |
| 3.1 | 0.11 |
| 3.2 | 0.12 |
| 3.3 | 0.14 |
| 3.4 | 0.15 |
| 3.5 | 0.16 |
| 3.6 | 0.17 |
| 3.7 | 0.18 |
| 3.8 | 0.20 |
| 3.9 | 0.22 |
| 4.0 | 0.25 |
| 4.2 | 0.30 |
| 4.4 | 0.33 |
| 4.5 | 0.35 |
| 4.6 | 0.38 |
| 4.8 | 0.40 |
| 5.0 | 0.50 |
| 5.4 | 0.60 |
| 5.5 | 0.63 |
| 5.6 | 0.65 |
| 6.0 | 0.75 |
| 6.4 | 0.95 |
| 6.6 | 1.00 |
| 6.8 | 1.17 |
| 7.0 | 1.25 |
| 7.2 | 1.33 |
| 7.5 | 1.55 |
| 7.8 | 1.75 |
| 8.0 | 2.00 |
| 8.4 | 2.15 |
| 8.6 | 2.25 |
| 9.0 | 2.75 |
| 9.4 | 3.00 |
| 9.6 | 3.15 |
| 9.8 | 3.35 |
| 10.0 | 3.50 |
| 10.2 | 3.75 |
| 10.4 | 4.00 |
| 10.6 | 4.25 |
| 10.8 | 4.5 |
| 11.0 | 4.75 |
| 11.2 | 5.00 |
| 12.0 | 6.50 |
Brilliant cut diamonds - cut guide
| EXCELLENT | VERY GOOD | GOOD | |
|---|---|---|---|
| TABLE % | 52-62 | 50-52 Eller 62-66 |
47-50 Eller 66-69 |
| DEPTH % | 57.5-63 | 56-57.5 Eller 63-64.5 |
53-56 Eller 64.5-67.5 |
| CROWN | 31.5-36-5 | 26.5-31.5 Eller 36.5-38.5 |
22-26.5 Eller 38.5-40 |
| PAVILLION | 40.6-41.8 | 39.8-40.6 Eller 41.8-42.4 |
38.8-39.8 Eller 42.4-43 |
| RONDIST | Thin Till Slightly Thick |
Very Thin Till Thick |
Extremely Thin Till Very Thick |
| GIRDLE | None Till Small |
None Till Medium |
None Till Large |
| RATIO | 1.00-1.01 | 1.00-1.01 | 1.00-1.02 |