Round Cut Black Diamond Ring

Round Cut Black Diamond Rings

Round diamonds are known in the diamond-cutting industry as "round brilliants" and constitute the most common diamond shapes in the world. They are appreciated for their symmetry, light-reflecting properties, and classic beauty. A regular round brilliant is cut in the manner that includes 58 facets in total; the cutting technique has been perfected throughout the past century with the main goal of providing as much fire and brilliance as possible to the stone. When combined with a black diamond, the same cutting techniques will provide a deep sparkling effect instead of the usual white brilliancy.

Round diamonds are also the easiest diamonds to set, which is why they complement any ring style quite well. If you wish to have a ring that features your stone exclusively without additional stones and accents, you will choose a solitaire ring. Alternatively, the same black round diamond can fit any setting: halo, pavé, or otherwise, just like other diamond shapes.

Why round is the classic choice

• Maximum brilliance – the round brilliant's facet pattern is engineered for light performance more than any other shape
• Timeless silhouette – a design that doesn't date with trends, unlike some fashion-forward cuts
• Easy to match – pairs cleanly with wedding bands and stacking rings without an awkward gap, since there's no pointed corner or asymmetry to work around

Prefer a bolder, more geometric look instead? Explore our princess cut black diamond rings or cushion cut black diamond rings for a different silhouette. 

Choosing your carat and metal

Our round cut black diamond rings range between approximately 2 and 5 carats and are available in either 14K or 18K white and black gold. Bigger carat sizes in our range usually include vintage design elements, three-stone mounting or even a halo due to the simple reason that big brilliant round cut diamonds are usually mounted to emphasize their bigger carat sizes.

Looking to layer a second band alongside your round black diamond ring? Browse our black diamond stackable rings for pieces designed to pair well together. 

A quick note on quality

Round brilliant black diamonds are not color and clarity rated based on the conventional diamond grading system that uses color and clarity rating systems for white diamonds because the diamond is purposely opaque. The key aspect to look out for is the cut precision, as the perfectly cut round brilliant black diamond should sit evenly in its setting while emitting evenly distributed light, as opposed to appearing flat and uneven.

Certified and guaranteed

We are registered with the Kimberley Process Certification Scheme, mining diamonds exclusively from countries that comply with the KP and cutting diamonds in our own certified factory, not via third parties. More information about our mining standards. Every order includes free worldwide shipping, a 30-day money-back guarantee, and a lifetime warranty on craftsmanship.

Frequently Asked Questions 

1. Why is the round cut the most popular diamond shape?

The round brilliant is a 58-facets diamond cut, which is designed to produce maximum light return. Because of this characteristic, round cut produces more brilliance than any other diamond shape. It is why it became the most common engagement ring choice over a century ago, with about two-thirds of all diamonds being round-cut.

2. Is a round cut suitable for a black diamond?

 Yes, the effect of the facet construction of the round brilliant cut on light return remains the same despite the color of the diamond. In black diamonds, it creates a deep even luster rather than a sparkling one like in white diamonds. Due to symmetry, the diamond receives light evenly without being flat in any position.

3. What setting is the best for a round black diamond?

 A round diamond can be matched with almost any setting, such as a solitaire, halo, pave and more, thanks to the shape of the stone. This feature is possible due to the absence of sharp edges and asymmetry, which would make the setting difficult to create.

4. What carat weights do round black diamond rings come in?

 Round black diamond rings usually have the weight of at least 1 carat up to 5 carats and more, and the sizes from 2 to 3 carats are quite popular. Such diamond size range allows for everyday wear and impressive appearance. Larger carat weights are usually matched with halo or three-stone settings.

5. Are black diamonds graded the same way as white diamonds?

 No, black diamonds are not graded by color and clarity scales like white diamonds, because it is an opaque stone. The quality of the black diamond is determined by the precision of cutting and the symmetry, which define the ability of the stone to sit and receive light correctly in the setting.