Oval Cut Engagement Rings | Lab Grown Diamond | IGI

Oval cut lab grown diamond engagement rings became the most requested shape globally in 2025, overtaking the round brilliant for the first time in modern jewelry history. The reason is value. An oval of the same carat weight as a round stone shows more face-up surface area, so it reads larger on the finger while costing the same.

Every oval cut lab grown diamond engagement ring in this collection is made to order in our Surat studio. The centre stones are Real CVD Lab-Grown Diamonds in VVS clarity and the D-E-F Colorless range, grown using Chemical Vapor Deposition technology. Because the oval's elongated table leaves more of the stone visible, that clarity grade does more visible work here than it does in a smaller, busier cut.

The oval also flatters the hand. Its long axis draws the eye down the finger rather than across it, which is why it photographs so well in the hand-forward angles people actually share. Available in solitaire, halo, three stone, pavé, eternity and mixed-shape settings, in 10K, 14K and 18K solid gold across white, yellow and rose, plus platinum.

2 Carat Oval Lab Grown Diamond Engagement Rings

Two carats is the most searched weight for an oval cut lab grown diamond engagement ring, and it is where the shape's advantage shows most clearly. A 2 carat oval measures roughly 9mm by 7mm against a 2 carat round at about 8.1mm across, so the oval covers noticeably more of the finger for the same weight and the same price.

At Ronora a 2 carat oval sits in the middle of the range rather than the top of it, which means the budget that buys a 2 carat mined stone elsewhere reaches considerably further here. Every stone from 1 carat upward arrives with IGI certification.

Oval Lab Grown Diamond Engagement Ring Prices

Real starting prices for the lab grown diamond rings in this collection. Each ring is made to order, and the price moves with carat weight, metal and setting.

Ring	Setting	Price from
Oval Solitaire Lab Grown Diamond Ring	Solitaire, IGI certified	$586
Oval Side Stone Engagement Ring	Side stone, IGI certified	$772
Oval Marquise Three Stone Ring	Three stone, IGI certified	$775
Oval Cluster Ring	Cluster, IGI certified	$816
Pink Oval Halo Ring	Fancy pink halo, IGI certified	$860
Oval Eternity Band	Stackable eternity	$1,280
Oval Halo Ring, Split Shank	Halo, IGI certified	$1,340
Yellow Gold Oval Eternity Band	Stackable eternity	$1,340
Full Oval Eternity Band	Full eternity	$1,890

Oval Moissanite Rings from $194

If budget is the deciding factor, this collection also includes oval rings set with moissanite. Moissanite is a different stone, not a diamond. It rates 9.25 on the Mohs hardness scale against a diamond's 10, and it throws noticeably more coloured fire. It is the most affordable way into a properly made ring, and every one is set in the same solid gold as the diamond pieces.

Ring	Setting	Price from
Oval Pear Moissanite Cluster Ring	Cluster, moissanite	$194
Oval Moissanite Pavé Ring	Solitaire with pavé, moissanite	$231
Oval Moissanite Halo Ring	Halo, moissanite	$280
Oval Moissanite Three Stone Ring	Three stone, moissanite	$373

How the Oval Compares to Other Diamond Shapes

If you are still deciding between shapes, this is the honest comparison.

Shape	Looks larger per carat	Character	Best suited to
Oval	Yes, about 10 percent more surface than round	Soft, elongating, brilliant	Getting maximum visual size and a flattering line on the finger
Round	No, the benchmark	Maximum fire and sparkle	Classic taste and the most forgiving cut for brilliance
Marquise	Yes, the largest surface per carat of any shape	Dramatic, vintage, pointed	Maximum finger coverage and a distinctive silhouette
Pear	Yes, similar to oval	Asymmetric, elegant	Something recognisable but less common than oval
Emerald	Yes on surface, though less sparkle	Step cut, architectural, understated	Clean lines over sparkle, where VVS clarity matters most

Frequently Asked Questions

How much does an oval lab grown diamond cost?
At Ronora an oval cut lab grown diamond engagement ring starts at $586 and most of the collection sits between $770 and $1,900 depending on carat weight, metal and setting. A comparable mined oval typically costs several times more for the same size and grade. Oval moissanite rings start at $194.

Is a lab grown diamond suitable for an engagement ring?
Yes. A lab grown diamond is chemically, physically and optically identical to a mined diamond. It measures 10 on the Mohs hardness scale exactly as a mined stone does, so it handles daily wear the same way. The only difference is origin and price.

What is the difference between a lab grown diamond and moissanite?
A lab grown diamond is a real diamond, identical in every physical and optical property to a mined one. Moissanite is a separate gemstone. It is slightly softer at 9.25 on the Mohs scale, throws more coloured fire, and costs considerably less. We label every ring clearly so you always know which stone you are buying.

Why does an oval look bigger than a round diamond of the same weight?
Carat is weight, not size. The oval distributes that weight across a longer, shallower footprint, so more of the stone faces upward. A 2 carat oval measures roughly 9mm by 7mm while a 2 carat round measures about 8.1mm across.

What clarity and colour are Ronora's oval diamonds?
Every oval lab grown diamond we set is VVS clarity in the D-E-F Colorless range. We do not stock lower clarity or colour grades, so there is no upgrade tier to negotiate.

Are these ovals IGI certified?
Every lab grown diamond centre stone of 1 carat or more is IGI certified, and the certificate ships with the ring. Smaller accent and pavé stones are not individually certified, which is standard practice across the industry.