Round engagement ring with a round diamond

Round Engagement Rings

Round engagement rings, each one a real round diamond near 1 carat set in one of our settings, shown with its full finished price. Choose a natural diamond graded by GIA or a lab grown diamond graded by IGI, in white, yellow, rose or blackened gold or platinum. Every round diamond ring comes with a Transparency Manifest that shows what the gold, the diamond and the labor cost, and what we make.

24 rings

  • Riley Vintage-Inspired Three-Stone ring in 18K White Gold with a 1.00 ct Natural Round diamond 1.00 ct Round Vintage-Inspired Three-Stone Ring$5,634 Natural, GIA · G SI1 · 18K White Gold
  • Harperly Classic Halo ring in 18K Yellow Gold with a 1.02 ct Lab grown Round diamond Lab grown 1.02 ct Round Classic Halo Ring$1,390 Lab grown, IGI · E VS1 · 18K Yellow Gold
  • Alondra Scalloped Halo ring in 18K Rose Gold with a 0.90 ct Natural Round diamond 0.90 ct Round Scalloped Halo Ring$4,215 Natural, GIA · G VVS2 · 18K Rose Gold
  • Julieta Swirl Halo ring in 18K Blackened Gold with a 1.09 ct Lab grown Round diamond Lab grown 1.09 ct Round Swirl Halo Ring$1,600 Lab grown, IGI · F VS1 · 18K Blackened Gold
  • Anahi Elegant Pave Solitaire ring in 18K White Gold with a 1.02 ct Natural Round diamond 1.02 ct Round Elegant Pave Solitaire Ring$4,001 Natural, GIA · H VVS2 · 18K White Gold
  • Brynlee Pave Set Four-Prong Solitaire ring in 18K Yellow Gold with a 1.00 ct Natural Round diamond 1.00 ct Round Pave Set Four-Prong Solitaire Ring$4,412 Natural, GIA · H VVS2 · 18K Yellow Gold
  • Transparency Manifest: every cost behind a True Sanity pieceClarity is a Form of Luxury Every piece arrives with its Transparency Manifest Discover how we price
  • Mallory Pave Set Classic Halo ring in 18K Rose Gold with a 1.09 ct Lab grown Round diamond Lab grown 1.09 ct Round Pave Set Classic Halo Ring$1,678 Lab grown, IGI · E VS1 · 18K Rose Gold
  • Soledad Floral Accent ring in 18K Blackened Gold with a 1.03 ct Natural Round diamond 1.03 ct Round Floral Accent Ring$4,579 Natural, GIA · H VS2 · 18K Blackened Gold
  • Grace Modern Spiral Wrap Solitaire ring in 18K White Gold with a 1.04 ct Lab grown Round diamond Lab grown 1.04 ct Round Modern Spiral Wrap Solitaire Ring$3,029 Lab grown, IGI · D VVS2 · 18K White Gold
  • Rayna Beaded Solitaire ring in 18K Yellow Gold with a 1.01 ct Natural Round diamond 1.01 ct Round Beaded Solitaire Ring$4,548 Natural, GIA · H VS1 · 18K Yellow Gold
  • Lyric Hidden Halo Solitaire ring in 18K Rose Gold with a 1.05 ct Lab grown Round diamond Lab grown 1.05 ct Round Hidden Halo Solitaire Ring$1,106 Lab grown, IGI · D VVS2 · 18K Rose Gold
  • Samaira Hidden Gallery Halo ring in 18K Blackened Gold with a 1.00 ct Natural Round diamond 1.00 ct Round Hidden Gallery Halo Ring$5,313 Natural, GIA · E VS2 · 18K Blackened Gold
  • Wren Hidden Accent ring in 18K White Gold with a 1.00 ct Natural Round diamond 1.00 ct Round Hidden Accent Ring$5,525 Natural, GIA · D VS1 · 18K White Gold
  • Kashvi Vintage Lattice Halo ring in 18K Yellow Gold with a 1.05 ct Lab grown Round diamond Lab grown 1.05 ct Round Vintage Lattice Halo Ring$2,482 Lab grown, IGI · E VVS1 · 18K Yellow Gold
  • Nerissa Modern Pave Set ring in 18K Rose Gold with a 1.06 ct Natural Round diamond 1.06 ct Round Modern Pave Set Ring$5,439 Natural, GIA · H VVS1 · 18K Rose Gold
  • Himani Three Stone Twisted Band ring in 18K Blackened Gold with a 0.96 ct Lab grown Round diamond Lab grown 0.96 ct Round Three Stone Twisted Band Ring$1,560 Lab grown, IGI · D VVS1 · 18K Blackened Gold
  • Marisol Swirl Pave Accented ring in 18K White Gold with a 1.00 ct Natural Round diamond 1.00 ct Round Swirl Pave Accented Ring$8,510 Natural, GIA · G VVS2 · 18K White Gold
  • Estrella Pave Set Wide Band ring in 18K Yellow Gold with a 1.02 ct Natural Round diamond 1.02 ct Round Pave Set Wide Band Ring$9,787 Natural, GIA · F VS1 · 18K Yellow Gold
  • Ekta Triple Band Solitaire ring in 18K Rose Gold with a 1.04 ct Lab grown Round diamond Lab grown 1.04 ct Round Triple Band Solitaire Ring$1,689 Lab grown, IGI · D VVS1 · 18K Rose Gold
  • Octavia Twist Solitaire ring in 18K Blackened Gold with a 1.00 ct Natural Round diamond 1.00 ct Round Twist Solitaire Ring$8,154 Natural, GIA · F VVS2 · 18K Blackened Gold
  • Leonie Classic 6-Prong Solitaire ring in 18K White Gold with a 1.04 ct Lab grown Round diamond Lab grown 1.04 ct Round Classic 6-Prong Solitaire Ring$1,367 Lab grown, IGI · D VVS1 · 18K White Gold
  • Skylar Triple Pave Crossover ring in 18K Yellow Gold with a 1.00 ct Natural Round diamond 1.00 ct Round Triple Pave Crossover Ring$8,578 Natural, GIA · F VVS1 · 18K Yellow Gold
  • Luna Leaf Motif Twisted ring in 18K Rose Gold with a 1.04 ct Lab grown Round diamond Lab grown 1.04 ct Round Leaf Motif Twisted Ring$2,638 Lab grown, IGI · D VVS2 · 18K Rose Gold
  • Paisley Vine Twist Solitaire ring in 18K Blackened Gold with a 1.00 ct Natural Round diamond 1.00 ct Round Vine Twist Solitaire Ring$9,115 Natural, GIA · E VVS1 · 18K Blackened Gold

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Real round diamonds, real prices

Every ring on this page pairs a specific round diamond from our natural or lab grown inventory with one of our settings. The price you see is the finished ring: setting plus that exact diamond. We refresh the stones every day, so a diamond that sells is replaced the next morning.

Tap a ring to change the metal or ring size, see the diamond's details, or swap in another round diamond.

Natural or lab grown

  • Natural: mined diamonds, each with a GIA report. Rarer and higher in price.
  • Lab grown: the same material as a mined diamond, grown in a lab, each with an IGI report. A lab grown round of the same size costs a fraction of a natural one.
  • Lab grown rings carry a Lab grown label, and the switch above the rings shows one kind or both.

What to look for in a round diamond

  • Cut grade: for a round diamond, cut decides the sparkle more than anything else. Look for Excellent or Ideal on the grading report.
  • Proportions: a well cut round returns light up through the top. Very deep or very shallow stones look darker or smaller for their weight.
  • Round brilliant: the classic 57 or 58 facet cut, the most brilliant of all diamond shapes.

What a round engagement ring costs

The price is the setting plus the diamond. With a natural 1 carat round diamond, most rings here land between about $4,200 and $9,100. With a lab grown one, between about $1,350 and $2,650. Each ring's Transparency Manifest breaks the price into metal, diamond, labor, logistics and our protocol fee.

How buying works

  • Made for you in about 14 days, then shipped from New York.
  • Free US shipping.
  • Our lifetime promise on craftsmanship.
  • A free appraisal with every ring over $2,000.

Compare other shapes: oval engagement rings, emerald cut engagement rings and marquise diamond rings, or read our diamond shape guide.

Round engagement rings FAQs

Is each round diamond on this page in stock?

Yes. Every ring is paired with a round diamond we hold, graded for cut, color and clarity. If it sells while you decide, we reach out right away with close alternatives.

Should I choose a natural or lab grown round diamond?

Both are diamond through and through. Natural rounds are rarer and hold more traditional appeal; lab grown rounds offer top cut grades and bigger sizes at a lower price. Every card is labeled.

Why are round diamonds the most popular shape?

A round brilliant returns more light than any other shape, so it shows the most sparkle, and its classic look suits every setting.

Do round diamonds cost more than other shapes?

Usually yes. Cutting a round wastes more of the rough crystal, so a round costs more per carat than most other shapes of the same quality.

Can I put a different round diamond in the setting I like?

Yes. Open the ring, browse other round diamonds, and pick your metal and ring size there. Platinum and four shades of gold are offered.

How much does a round engagement ring cost?

Pair a setting with a natural 1 carat round and most rings land between $4,200 and $9,100. Lab grown rounds bring that to about $1,350 to $2,650. Every ring has a Transparency Manifest with the full breakdown.