A Promise, Perfected

1 Carat Round Solitaire Rings

Each ring here is a 1ct round lab-grown diamond solitaire ring with its 1 carat round lab-grown diamond center already set. Choose white, yellow or rose gold in 10K, 14K or 18K, or platinum. Band options range from a thin or rounded plain band to pavé, a hidden halo below the center, and a cathedral design with a graduated pavé band.

1Choose a setting
Choose a Setting
Browse signature ring designs
2Select a diamond
Select a Diamond
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3Complete the ring
Complete the Ring
Preview & make it yours
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16 rings
16 rings
Conflict-Free
Ethically sourced diamonds
Lifetime Warranty
Free cleaning & resizing
Free Shipping
30-day returns
IGI / GIA Certified
Independently graded

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Buying guide

Why a round center suits a solitaire

A round brilliant is cut to return as much light as possible, so it gives the most sparkle of any shape. In a solitaire, nothing competes with it: the center sits alone on the band and catches light from every side. A 1 carat round lab-grown diamond looks bright and balanced on most hands and pairs easily with a wedding band.

Band and setting choices

  • Plain band: thin or rounded, for the cleanest classic look.
  • Pavé band: small lab-grown diamonds set along the shank for extra sparkle.
  • Hidden halo: a ring of small lab-grown diamonds under the center, seen from the side.
  • Cathedral: metal arches lift the center, with a graduated pavé band.

Metal for a 1 carat round lab-grown diamond solitaire engagement ring

White gold and platinum give a bright white look; platinum is denser, heavier and needs no plating. Yellow gold is warm and traditional, and rose gold has a soft pink tone. Gold comes in 10K, 14K or 18K. The 1 carat figure is the round center's weight; pavé and hidden-halo accents add to the ring's total.

Made to order

Each ring is made for you in 10–15 days. Shipping is free on orders over $500, returns are accepted within 30 days, and one resize is free within 60 days of delivery.