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All about Round Brilliant Diamonds for Engagement Rings and Wedding Bands: The Diamond with the Most Sparkle

Round diamonds are called “brilliant” because the shape reflects the most light, and as a result, provides the most sparkle of all diamond cuts. Round diamonds are always one of the most popular for engagement rings due to their stunning and traditional look.
Why Round Brilliant Diamonds Shine
REFLECT THE MOST LIGHT
Round cut diamonds reflect the most light because they have the largest number of facets of all diamond cuts at 57-58.
REQUIRE MORE DIAMOND MATERIAL
These diamonds require more raw material (due to how they are cut) and therefore can be more expensive than diamonds of different shapes with the same carat weight.
CLASSICAL LOOK
Round brilliant diamonds have a classic look and are the traditional choice for solitaires.
The most important criteria for any diamond is that you love how it looks, but your Robbins Brothers associate can help you use the 4cs (cut, color, clarity, and carat) to learn more about what makes each diamond different. And at Robbins Brothers, you can rest assured knowing that you are only viewing the best of the best in visual beauty as we only select about 1 in 10 diamonds we see, so you can be confident that your choice will be only the best quality.
For round cut diamonds, the cut is crucial as it determines how light reflects through it. A diamond that’s too shallow or too deep allows light to escape through the slides or bottom of the stone, leading to less light reflection.
We have an extensive selection of loose round brilliant cut diamonds that we have carefully chosen due to their sparkle and beauty. Also check out our round brilliant diamond buying guide!
Round Diamond Engagement Rings
Round cut diamonds look amazing in a wide variety of engagement ring settings or as a solitaire:

Gabriel & Co. 14K White Gold Natural Diamond Engagement Ring Setting 3/8 ct. tw.
- Sku: 0448461
- 14Kt White Gold
- Gabriel and Co designer collection
- Shown with round center diamond (sold separately)

A.JAFFE 14K Yellow Gold Natural Diamond Engagement Ring Setting 3/8 ct. tw.
- Sku: 0463814
- 14Kt Yellow Gold
- A.JAFFE designer collection
- Shown with round center diamond (sold separately)

Eternalle Platinum Lab-Grown Diamond Engagement Ring 2 ct. tw.
- Sku: 0464036
- Platinum
- Eternalle designer collection
- 2 ct. tw. lab-grown round diamond
Adding round side stones creates a ring that is reminiscent of infinite symmetry.

Verragio 14K White Gold Natural Diamond Engagement Ring Setting 5/8 ct. tw.
- Sku: 0439817
- 14Kt White Gold
- Verragio designer collection
- Shown with round center diamond (sold separately)

A.JAFFE 14K White Gold Natural Diamond Engagement Ring Setting 1 ct. tw.
- Sku: 0454736
- 14Kt White Gold
- A.JAFFE designer collection
- Shown with round center diamond (sold separately)

Luxe 14K White Gold Natural Diamond Engagement Ring Setting 1/2 ct. tw.
- Sku: 0456916
- 14Kt White Gold
- LUXE designer collection
- Shown with round center diamond (sold separately)
A round diamond in a halo setting can create even more sparkle!

Verragio 18K Rose Gold and 18K White Gold Natural Diamond Engagement Ring Setting 1/2 ct. tw.
- Sku: 0406406
- 18Kt Rose Gold & 18Kt White Gold
- Verragio designer collection
- Shown with round center diamond (sold separately)

RB Signature 14K White Gold Natural Diamond Engagement Ring Setting 1/2 ct. tw.
- Sku: 0459765
- 14Kt White Gold
- RB Signature designer collection
- Shown with round center diamond (sold separately)

Michael M. 18K Yellow Gold Natural Diamond Engagement Ring Setting 1/3 ct. tw.
- Sku: 0455366
- 18Kt Yellow Gold
- Michael M designer collection
- Shown with round center diamond (sold separately)
Or consider a pavé setting with round diamonds:

Michael M. 18K Yellow Gold Natural Diamond Engagement Ring Setting 1 ct. tw.
- Sku: 0447880
- 18Kt Yellow Gold
- Michael M designer collection
- Shown with round center diamond (sold separately)

Michael M. 18K White Gold Natural Diamond Engagement Ring Setting 1 ct. tw.
- Sku: 0456906
- 18Kt White Gold
- Michael M designer collection
- Shown with round center diamond (sold separately)

Eternalle 14K White Gold Lab-Grown Diamond Engagement Ring 3 ct. tw.
- Sku: 0456650
- 14Kt White Gold
- Eternalle designer collection
- 3 ct. tw. lab-grown emerald cut diamond
Wedding Bands
You can pair your round diamond engagement ring with a wedding band with complementary round diamonds.
For inspiration, browse our selection of round diamond engagement rings, wedding bands, and loose diamonds online, check out our round diamond Pinterest board, and then stop into your neighborhood Robbins Brothers or make an appointment to find your perfect rings.