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Every stone independently graded and certified.

452 results

Lab-Grown Oval Diamonds

Oval is the most requested shape in lab-grown, and the supply reflects it — which means for once you can buy the proportions you want rather than the proportions that happen to be affordable.

That matters more in this shape than most. On mined ovals, a well-cut 1.45 ratio with a clean centre carries a premium, and a lot of buyers quietly settle for a rounder or bow-tied stone to protect the carat weight. Here the ratio costs almost nothing. If you want a long, elegant 1.50, you can simply have one.

Use that freedom on the two things that decide whether an oval looks expensive. Ratio first: pick your number, then filter to it. Bow-tie second: play the 360° video and watch the waist as the stone turns. A small dark band that flickers is normal and attractive; a fixed grey bar across the middle is not, and it will look the same on the hand as it does on screen.

Colour is the place to save. An oval concentrates colour at its ends, but in a white or platinum setting an H reads as white to almost everyone — and at lab prices, G and H are barely apart anyway.

Questions people ask before buying

Are these diamonds certified?

Yes. Every stone is graded by GIA, IGI or HRD, and the report number is shown on the stone's page so you can verify it directly with the laboratory. A stone certified by any other laboratory, or ungraded, cannot be bought here at all.

Does the price include a setting?

No. Loose diamonds and ring settings are priced separately, so you can pair any stone with any setting in a compatible shape. The ring builder shows the two together and the combined total before you order.

What should I prioritise when choosing?

Cut first — it is the only grade you can see across a room. Then clarity down to eye-clean, usually VS2 or SI1. Then colour: G or H reads white in platinum, I or J in yellow gold. Then buy just under a landmark weight, because 0.95 ct looks like 1.00 ct and costs less. The guide to the 4Cs explains the trade-offs in full.

How much is shipping?

Nothing. Every order ships free and fully insured, anywhere in the world, at any order value. Import duties and taxes outside the United States are the recipient's responsibility.

Can I return it?

Yes, within 30 days, unworn and in its original packaging with the certificate. The return leg is arranged and paid by you, and must be insured and tracked.

Is there a warranty?

A lifetime warranty against any manufacturing defect, for as long as you own the piece. Full detail on the FAQ page.

Select your centre stone

1.52ct Oval Lab Grown Diamond (Colour I, Clarity VS2, IGI Certified)

1.15ct Oval Lab Grown Diamond (Colour E, Clarity VS2, IGI Certified)

1.12ct Oval Lab Grown Diamond (Colour D, Clarity VS1, IGI Certified)

1.10ct Oval Lab Grown Diamond (Colour G, Clarity VS2, IGI Certified)

1.58ct Oval Lab Grown Diamond (Colour H, Clarity VVS2, IGI Certified)

1.53ct Oval Lab Grown Diamond (Colour G, Clarity VS1, IGI Certified)

1.52ct Oval Lab Grown Diamond (Colour G, Clarity VS1, IGI Certified)

1.50ct Oval Lab Grown Diamond (Colour E, Clarity SI1, IGI Certified)

1.12ct Oval Lab Grown Diamond (Colour F, Clarity VS1, Cut EX, IGI Certified)

1.53ct Oval Lab Grown Diamond (Colour H, Clarity VVS2, IGI Certified)

1.14ct Oval Lab Grown Diamond (Colour E, Clarity VS2, IGI Certified)

1.16ct Oval Lab Grown Diamond (Colour D, Clarity VS2, IGI Certified)

1.11ct Oval Lab Grown Diamond (Colour D, Clarity VS2, IGI Certified)

1.11ct Oval Lab Grown Diamond (Colour D, Clarity VS2, IGI Certified)

1.16ct Oval Lab Grown Diamond (Colour E, Clarity VS1, IGI Certified)

1.13ct Oval Lab Grown Diamond (Colour E, Clarity VVS2, IGI Certified)

1.11ct Oval Lab Grown Diamond (Colour D, Clarity VVS1, IGI Certified)

1.10ct Oval Lab Grown Diamond (Colour G, Clarity VVS2, IGI Certified)

1.11ct Oval Lab Grown Diamond (Colour D, Clarity VS1, IGI Certified)

1.12ct Oval Lab Grown Diamond (Colour F, Clarity VS1, IGI Certified)

1.52ct Oval Lab Grown Diamond (Colour D, Clarity SI1, IGI Certified)