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0,73 ct Round
D · VS1
1.000 €
Round Diamonds
The round cut is the most popular shape for engagement rings and the only shape for which the GIA assigns its own cut grade. Here you can view our current inventory of round diamonds—both lab-grown and naturally formed—each certified by either the IGI or the GIA. Prices are listed openly, and you can filter by carat weight, color, and clarity. The statutory 14-day right of withdrawal applies to every order.
Shape
Multiple selections allowed
| Stone | Shape | Clarity | Pol. | Sym. | Fluorine. | Laboratory | Dimensions | L/W | Table | Depth | Delivery | Bookmark | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 360° | Round | 0,73 | D | VS1 | Very good | VG | VG | None | IGI | 5,64 × 5,68 × 3,61 | 0,99 | 58 % | 63,8 % | 7–9 wt. | 1.000 € | |
 360° | Round | 1,19 | E | VS1 | Very good | EX | EX | None | IGI | 6,64 × 6,72 × 4,27 | 0,99 | 57 % | 63,9 % | 7–9 wt. | 1.020 € | |
 360° | Round | 2,08 | D | VVS2 | Very good | EX | EX | None | IGI | 8,13 × 8,19 × 5,06 | 0,99 | 61 % | 61,9 % | 7–9 wt. | 2.050 € | |
 360° | Round | 1,41 | F | VVS2 | Very good | EX | EX | None | IGI | 7,04 × 7,12 × 4,54 | 0,99 | 56 % | 64,1 % | 7–9 wt. | 1.170 € | |
 360° | Round | 0,65 | E | SI1 | Very good | VG | VG | None | IGI | 5,47 × 5,53 × 3,52 | 0,99 | 61 % | 64,3 % | 7–9 wt. | 610 € | |
 360° | Round | 1,00 | F | VVS2 | Very good | EX | EX | None | IGI | 6,35 × 6,38 × 3,95 | 1,00 | 58 % | 62,1 % | 7–9 wt. | 1.110 € | |
 360° | Round | 2,98 | D | VS2 | Very good | EX | VG | None | IGI | 9,33 × 9,40 × 5,46 | 0,99 | 62 % | 58,3 % | 7–9 wt. | 1.830 € | |
 360° | Round | 2,41 | F | VS2 | Very good | EX | VG | None | IGI | 8,43 × 8,51 × 5,26 | 0,99 | 62 % | 62,1 % | 7–9 wt. | 1.950 € | |
 360° | Round | 1,17 | E | VVS2 | Very good | EX | EX | None | GIA | 6,81 × 6,83 × 4,15 | 1,00 | 56 % | 60,8 % | 7–9 wt. | 1.910 € | |
 360° | Round | 2,09 | F | VVS2 | Very good | VG | EX | None | IGI | 7,97 × 8,00 × 5,09 | 1,00 | 60 % | 63,7 % | 7–9 wt. | 2.160 € | |
 360° | Round | 1,51 | E | SI1 | Very good | EX | EX | None | IGI | 7,17 × 7,20 × 4,65 | 1,00 | 58 % | 64,7 % | 7–9 wt. | 2.040 € | |
 360° | Round | 0,39 | D | VVS1 | Very good | VG | GD | None | IGI | 4,65 × 4,67 × 2,92 | 1,00 | 60 % | 62,6 % | 7–9 wt. | 530 € | |
 360° | Round | 3,04 | E | VS2 | Very good | VG | EX | None | GIA | 9,38 × 9,41 × 5,65 | 1,00 | 56 % | 60,1 % | 7–9 wt. | 2.220 € | |
 360° | Round | 0,70 | D | VS1 | Very good | VG | VG | None | IGI | 5,62 × 5,66 × 3,46 | 0,99 | 60 % | 61,2 % | 7–9 wt. | 960 € | |
 360° | Round | 2,55 | E | VVS2 | Very good | EX | EX | None | GIA | 8,76 × 8,70 × 5,37 | 1,01 | 59 % | 61,5 % | 7–9 wt. | 2.730 € | |
 360° | Round | 2,84 | E | VS1 | Very good | EX | EX | None | GIA | 9,05 × 9,03 × 5,65 | 1,00 | 56 % | 63,0 % | 7–9 wt. | 2.700 € | |
 360° | Round | 1,81 | F | VVS2 | Very good | VG | EX | None | IGI | 7,62 × 7,68 × 4,90 | 0,99 | 60 % | 64,1 % | 7–9 wt. | 1.420 € | |
 360° | Round | 2,04 | E | VVS2 | Very good | VG | EX | None | IGI | 7,92 × 7,94 × 5,11 | 1,00 | 54 % | 64,4 % | 7–9 wt. | 2.120 € | |
 360° | Round | 2,00 | D | VS1 | Very good | EX | EX | None | IGI | 8,11 × 8,13 × 4,86 | 1,00 | 63 % | 59,9 % | 7–9 wt. | 1.750 € | |
 360° | Round | 2,47 | F | VVS2 | Very good | EX | VG | None | IGI | 8,58 × 8,65 × 5,28 | 0,99 | 58 % | 61,2 % | 7–9 wt. | 2.150 € | |
 360° | Round | 1,86 | F | VVS2 | Very good | VG | VG | None | IGI | 7,87 × 7,94 × 4,75 | 0,99 | 61 % | 60,1 % | 7–9 wt. | 1.460 € | |
 360° | Round | 1,70 | E | VVS2 | Very good | EX | EX | None | IGI | 7,51 × 7,58 × 4,73 | 0,99 | 60 % | 62,7 % | 7–9 wt. | 1.390 € | |
 360° | Round | 1,05 | D | VS1 | Very good | EX | VG | None | IGI | 6,35 × 6,42 × 4,03 | 0,99 | 58 % | 63,2 % | 7–9 wt. | 1.350 € | |
 360° | Round | 2,00 | E | VVS2 | Very good | EX | EX | None | GIA | 8,21 × 8,16 × 4,89 | 1,01 | 59 % | 59,8 % | 7–9 wt. | 2.750 € |
1,19 ct Round
E · VS1
1.020 €
2,08 ct Round
D · VVS2
2.050 €
1,41 ct Round
F · VVS2
1.170 €
0,65 ct Round
E · SI1
610 €
1,00 ct Round
F · VVS2
1.110 €
2,98 ct Round
D · VS2
1.830 €
2,41 ct Round
F · VS2
1.950 €
1,17 ct Round
E · VVS2
1.910 €
2,09 ct Round
F · VVS2
2.160 €
1,51 ct Round
E · SI1
2.040 €
0,39 ct Round
D · VVS1
530 €
3,04 ct Round
E · VS2
2.220 €
0,70 ct Round
D · VS1
960 €
2,55 ct Round
E · VVS2
2.730 €
2,84 ct Round
E · VS1
2.700 €
1,81 ct Round
F · VVS2
1.420 €
2,04 ct Round
E · VVS2
2.120 €
2,00 ct Round
D · VS1
1.750 €
2,47 ct Round
F · VVS2
2.150 €
1,86 ct Round
F · VVS2
1.460 €
1,70 ct Round
E · VVS2
1.390 €
1,05 ct Round
D · VS1
1.350 €
2,00 ct Round
E · VVS2
2.750 €
24 / 65.969 shown
All prices include 19% VAT · 14-day right of withdrawal · Stones are sold individually and may be sold out on short notice.
Round: Size per carat
| Carat | Approx. size (mm) |
|---|---|
| 0.5 ct | approx. 5.1 mm |
| 1 ct | approx. 6.5 mm |
| 1.5 ct | approx. 7.4 mm |
| 2 ct | approx. 8.1 mm |
| 3 ct | approx. 9.3 mm |
Standard length-to-width ratio: 1.00–1.02
Popular Sizes
What to Look for in Round Diamonds
Cut: Only here is there an overall grade
For round cuts, the GIA and IGI assign a cut grade ranging from Excellent downward. This grade takes into account proportions, polish, and symmetry, and is the single most important factor in a diamond’s sparkle. Look at this first, then at the rest. Two stones with the same carat weight, color, and clarity can differ significantly based solely on their cut.
Colour and Purity: Where the Sweet Spot Lies
The round brilliant cut refracts light more strongly than any other cut, thereby concealing small inclusions. VS2 and, often, SI1 diamonds appear clear to the naked eye as long as the inclusions are not centreed beneath the table. As for colour, a grade of G to H is sufficient to create an impression that is virtually indistinguishable from colourless, especially in white gold or platinum.
Size: What One Carat Means in Millimeters
One carat equals 0.2 grams; it is therefore a unit of weight, not a unit of size. A round diamond weighing 1 ct measures approximately 6.5 mm in diameter, while a 2 ct diamond measures approximately 8.1 mm. Although the weight doubles, the visible diameter increases by only about a quarter. If you’re looking for visual size, you should also make sure the stone’s depth isn’t too great.
Frequently Asked Questions
Why does the GIA assign a cut grade only to round diamonds?
Because the round cut has standardized proportions, its light performance can be objectively evaluated. For this reason, the GIA assigns an overall grade—such as “Excellent” or “Very Good”—only for this cut. Since 2022, the IGI has also been evaluating fancy shapes. Nevertheless, polish, symmetry, table, depth, and the length-to-width ratio remain the most important specifications listed on the certificate.
What clarity grade is considered "eye-clean" for a round diamond?
In practice, the cutoff is usually VS2 or SI1. It’s not just the grade that matters, but also the location of the inclusions: when they’re on the sides of the girdle, they’re hardly noticeable, but when they’re in the center of the table, they’re more distracting. For stones two carats and larger, it’s worth taking a closer look because the visible surface area increases.
Does a round lab-grown diamond look different from a natural one?
No. Both have the same crystal structure, the same hardness, and the same refractive index, so they sparkle the same way. They can only be distinguished in the lab by subtle growth marks. The origin is always listed on the certificate and, in our case, also in the product description, so you know what you’re buying.
How big does a round diamond look in the finished ring?
That depends on the diameter and the setting. A narrow band and a raised prong setting make the same stone appear larger than a wide band with side stones. As a general guide: 1 ct measures about 6.5 mm in diameter, 1.5 ct about 7.4 mm, and 2 ct about 8.1 mm.
Lab-grown diamond or natural diamond?
Lab-grown diamonds and natural diamonds are both composed of pure carbon and share the same crystal structure, hardness, and refractive index. The difference lies in their formation: one forms over millions of years in the Earth’s mantle, the other in a matter of weeks in a laboratory. Visually, they are indistinguishable without specialized laboratory equipment. Lab-grown diamonds are significantly less expensive than comparable natural diamonds, which is why, with the same budget, you can often get more carats or a higher clarity grade. Both types come with a laboratory certificate from us; you can look up the report number directly with the laboratory.
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The difference between carat sizes
0.5 Carat
1.0 Carat
1.5 Carat
2.0 Carat
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