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3 Carat Oval Cut Lab Grown Diamonds

Select a 3ct Oval cut lab grown diamond from the thousands of certified lab diamonds in our collection.
Call us today: 020 35852295

Looking To Buy a 3 Carat Oval Cut Lab Grown Diamond?

Search through our inventory below or book a visit to our London Showroom.

  • Round Round

  • Princess Princess

  • Cushion Cushion

  • Emerald Emerald

  • Pear Pear

  • Oval Oval

  • Marquise Marquise

  • Radiant Radiant

  • Asscher Asscher

  • Heart Heart

  • European Cut European Cut

  • Old Miner Old Miner

  • Rose Rose

  • Briolette Briolette

  • Bullets Bullets

  • Calf Calf

  • Flanders Flanders

  • Half Moon Half Moon

  • Hexagonal Hexagonal

  • Kite Kite

  • Lozenge Lozenge

  • Octagonal Octagonal

  • Pentagonal Pentagonal

  • Shield Shield

  • Square Square

  • Star Star

  • Tapered Baguette Tapered Baguette

  • Baguette Baguette

  • Tapered Bullet Tapered Bullet

  • Trapezoid Trapezoid

  • Triangular Triangular

  • Trilliant Trilliant

  • Other

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3 Carat Oval Cut Lab-Grown Diamond

A 3-carat oval cut diamond is an elegant and flattering choice for engagement rings or custom jewellery designs, offering brilliant sparkle with a contemporary twist. Its elongated shape enhances perceived size and adds a graceful, lengthening effect to the finger, blending modern beauty with timeless sophistication.

Why Choose a Lab-Grown Diamond?

Lab-grown diamonds are genuine diamonds, created using state-of-the-art technology that mimics natural formation conditions. They are chemically, optically, and physically identical to mined diamonds—the only difference is their origin. Lab-created diamonds typically cost 30% to 50% less than natural ones, providing exceptional value without compromising quality.

At RÊVE Diamonds, each of our lab-grown diamonds is independently certified by respected organisations such as IGI or GIA, giving you full confidence in your purchase.

Need Assistance?

Call us on 020 3585 2295 or chat with our diamond experts to find your perfect 3 carat oval cut lab-grown diamond today.

Frequently Asked Questions

-How much does a 3-carat oval cut lab-grown diamond cost?

Prices range from £2,500 to £20,000 depending on cut, colour, clarity, and overall craftsmanship.

-What does a 3-carat oval cut lab-grown diamond weigh?

A 3-carat diamond weighs around 0.6 grams, or 600 milligrams.

-What size is a 3-carat oval cut lab-grown diamond?

Oval diamonds are elongated with curved edges. Typical 3-carat size range:

Length: 11.5 mm – 14.0 mm (avg. 12.4 mm)

Width: 7.5 mm – 9.5 mm (avg. 8.5 mm)

Depth: 4.8 mm – 6.5 mm (avg. 5.7 mm)