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Round cut lab grown diamond engagement rings collection at Ronora Diamond Round Cut Lab Grown Diamond Engagement Rings

RINGS MADE TO ORDER

Round Cut Lab Grown Diamond Engagement Rings

Our round cut engagement rings hold round brilliant lab grown diamonds, the shape with the most sparkle.

A round brilliant has 57 or 58 facets arranged to send light back up through the top of the stone, which is why it shows more sparkle than any other shape. It suits nearly every setting and every hand.

Choosing your round setting

A solitaire shows the cut most clearly and keeps the band slim. A halo frames the center with small diamonds and makes it look wider from above. A hidden halo sets those diamonds under the stone, so the sparkle shows from the side. A three stone ring pairs the round with two side stones for a fuller look.

The Ronora standard

Every stone is a real lab grown diamond, grown with CVD technology and chosen for Excellent cut and VVS-VS clarity, with white diamonds in the D-E-F colorless range. With a round brilliant, cut matters most, because it decides how bright the stone looks. Every gold ring comes with an SGL jewelry certificate and every platinum ring with an ITPL certificate, and every lab grown diamond of 1 carat or more also comes with its own IGI report.

Size and metal

A round diamond faces up a little smaller per carat than an oval or a marquise, because its weight sits evenly instead of along the finger. Our guides show how big a 1 carat diamond looks, and the diamond size chart gives the width in millimeters for each carat. Torn between two shapes? Read oval vs round. Each ring is made to order in our Surat studio. Choose 9K, 14K or 18K solid gold in white, yellow or rose gold. Platinum and 925 sterling silver are also available.

Looking for every shape? Browse all lab grown diamond engagement rings.

Made for the Moments.

77 products
77 products
57 Facets, Zero Shortcuts

57 Facets, Zero Shortcuts

A round brilliant lives or dies by its cut. Ours are set by hand in our Surat studio, angle checked so the light has nowhere to hide.

The Safe Choice, Certified

The Safe Choice, Certified

Round is the shape few people ever regret. Every lab grown diamond of 1 carat or more comes with its own IGI report, and resizing is free within 6 months on website orders.

Classic Does Not Mean Costly

Classic Does Not Mean Costly

The world's most wanted cut, at two to three times the carat your budget expects. That is the lab grown difference.

Why choose a round brilliant?

It returns the most light of any shape, so it shows the most sparkle, and it suits almost every setting. Cut matters most for a round, and ours are all Excellent cut.

Does a round look smaller than an oval of the same carat?

Slightly, when seen from above, because an oval spreads its weight along the finger. A halo or a slim band helps a round look larger.

Which setting suits a round diamond best?

A solitaire shows the cut most clearly. A halo or hidden halo adds sparkle, and a three stone ring gives a fuller look.

How big is a 1 carat round diamond?

About 6.5 mm across. A 1.5 carat round is about 7.4 mm and a 2 carat round about 8.2 mm.

Does my round diamond come with a certificate?

Yes. Every gold ring comes with an SGL jewelry certificate and every platinum ring with an ITPL certificate. Every lab grown diamond of 1 carat or more also comes with its own IGI report.

What if the ring does not fit?

Resizing is free within 6 months of your order date for rings bought on our website. You only pay the delivery charge to send the ring to our studio in India.