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  • https://www.revediamonds.com/3-carat-d-if-lab-grown-diamonds

3 Carat D IF Lab Grown Diamonds

Select a 3ct D IF 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 D IF 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 D IF Lab-Grown Diamond

A 3-carat D colour Internally Flawless diamond is an exquisite choice for engagement rings or bespoke jewellery. Completely colourless and free from inclusions, it delivers unmatched brilliance and clarity—perfect for those who value ultimate purity and timeless beauty.

What Is a Lab-Grown Diamond?

Lab-grown diamonds are real diamonds created in a laboratory setting, using either the High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD) process. They are physically, chemically, and visually the same as mined diamonds—so much so that even expert gemologists require advanced equipment to tell them apart.

Choosing lab-grown means saving 30% to 50% over the price of a natural diamond, all while making an environmentally conscious and ethical decision.

All REVE Diamonds’ lab-grown stones are independently certified, most commonly by IGI or GIA.

Need Assistance?

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

Frequently Asked Questions

-What does D IF mean in a 3 carat lab-grown diamond?

D is the highest color grade, meaning the diamond is completely colorless. IF (Internally Flawless) means there are no internal imperfections under 10x magnification—together, they represent diamond perfection.

-How much does a 3 carat D IF lab-grown diamond cost?

Prices typically range from £4,000 to £22,000, depending on the diamond’s cut, colour, polish, symmetry, and certification. The D colour and IF clarity grades command a premium.

-Is a 3 carat D IF lab-grown diamond better than a mined diamond?

Lab grown diamonds are chemically and optically identical to mined diamonds. A 3ct D IF lab grown diamond offers the same beauty and quality at a significantly lower price and with a lower environmental impact.

-Will a D IF lab-grown diamond look better than a G VS diamond?

Yes. A D IF diamond is completely colourless and internally flawless, offering superior visual purity and brilliance when compared to near-colourless or slightly included stones.

-What size is a 3 carat D IF lab-grown diamond?

A 3 carat diamond typically measures around 9.3 mm in diameter for a round cut or 9.5 mm x 9.5 mm for a square cut like Asscher. Clarity and colour do not affect the physical size of the diamond.