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  • https://www.revediamonds.com/3-carat-heart-shaped-lab-grown-diamonds

3 Carat Heart Shaped Lab-Grown Diamonds

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

Looking To Buy a 3 Carat Heart Shaped Lab Grown Diamond?

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

Lab Grown Diamonds
Coloured Diamonds

  • 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 Heart Shaped Lab-Grown Diamond

A 3-carat heart shaped diamond is the ultimate symbol of love and devotion—ideal for romantic engagement rings or meaningful jewellery pieces. This distinctive cut combines brilliance with sentimental charm, offering a beautiful blend of sparkle and personal expression. Its unique silhouette ensures it stands out with elegance and emotion.

Why Choose a Lab-Grown Diamond?

Lab-grown diamonds are genuine diamonds, formed using innovative technology that simulates the natural growth process. They possess the same physical, chemical, and optical properties as mined diamonds—making them indistinguishable without specialist equipment. Lab-created diamonds are usually 30% to 50% more affordable than natural ones, enabling you to invest in a larger or higher-quality stone at the same budget.

At RÊVE Diamonds, all our lab-grown diamonds are independently certified by respected institutions like IGI or GIA, ensuring full traceability and confidence in every purchase.

Need Assistance?

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

Frequently Asked Questions

-How much does a 3-carat heart shaped lab-grown diamond cost?

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

-What does a 3-carat heart shaped lab-grown diamond weigh?

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

-What size is a 3-carat heart shaped lab-grown diamond?

Heart shaped diamonds have a rounded base and pointed tip. Typical size range:

Length: 9.0 mm – 11.5 mm (avg. 10.3 mm)

Width: 9.0 mm – 11.0 mm (avg. 10.0 mm)

Depth: 5.0 mm – 7.2 mm (avg. 6.2 mm)