Lab Grown Radiant Cut Diamond Engagement Rings

Radiant cut diamond engagement rings pair the fiery sparkle of a round brilliant with the clean, modern lines of a rectangle. Each lab-grown diamond in this collection is IGI certified and ethically sourced, so you can choose a ring that looks extraordinary and feels right. Explore solitaire, halo, hidden halo and pavé designs in 14K or 18K gold and platinum, then personalize every detail for a proposal she'll never forget.

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  • Radiant Cut Lab Grown Diamond Ring Bridal Set

    Radiant Cut Lab Grown Diamond Ring Bridal Set

    Sale price  $1,453.30 USD Regular price  $1,961.96 USD

    6 reviews

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    Radiant Cut Lab Grown Diamond Ring Bridal Set

    10K Gold / 1.00 CT / Yellow Gold

  • 3CT Radiant Cut Pave Set Lab-Grown Diamond Engagement Ring

    3CT Radiant Cut Pave Set Lab-Grown Diamond Engagement Ring

    Sale price  $1,587.75 USD Regular price  $2,143.46 USD

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    3CT Radiant Cut Pave Set Lab-Grown Diamond Engagement Ring

    10K Gold / White Gold

  • Radiant Cut Lab Grown 3 Stone Bridal Set

    Radiant Cut Lab Grown 3 Stone Bridal Set

    Sale price  $1,591.93 USD Regular price  $2,149.11 USD

    9 reviews

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    Radiant Cut Lab Grown 3 Stone Bridal Set

    10K Gold / 1.00 CT / Yellow Gold

  • 4 CT Radiant Cut Lab Grown Diamond Ring in 14K White Gold

    4 CT Radiant Cut Lab Grown Diamond Ring in 14K White Gold

    Sale price  $1,697.25 USD Regular price  $2,291.32 USD

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    4 CT Radiant Cut Lab Grown Diamond Ring in 14K White Gold

    10K Gold / White Gold

Frequently Asked Questions

Is a radiant cut diamond a good choice for an engagement ring?

 Yes. A radiant cut combines brilliant sparkle with a rectangular or square outline, and its trimmed corners make it more resistant to chipping than shapes with sharp points. It suits both classic and modern settings, making it a versatile, practical option for a ring worn every day.

Are lab-grown radiant cut diamonds real diamonds?

 Yes. Lab-grown diamonds are chemically, physically and optically identical to mined diamonds. They are made of crystallized carbon, score 10 on the Mohs hardness scale and are graded using the same 4Cs. The only difference is origin: they are created in a controlled environment rather than mined from the earth.

What is the best length-to-width ratio for a radiant cut diamond?

 It depends on personal taste. A ratio of about 1.00–1.05 gives a square look, while 1.20–1.35 creates a classic elongated rectangle that can make fingers appear longer and slimmer. Consider her hand shape and preferred style, and compare a few ratios before deciding

Are your lab-grown diamonds IGI certified?

Yes. Each lab-grown diamond center stone comes with an IGI certificate, an independent grading report that documents its cut, color, clarity and carat weight. This gives you clear, verified information about the stone you are buying and added confidence in its quality and value.

Which metal looks best with a radiant cut diamond?

 White gold and platinum enhance the diamond's bright, icy sparkle and suit a modern look. Yellow gold offers a warm, timeless contrast, while rose gold adds a romantic, vintage-inspired feel. Choose based on her skin tone, the jewelry she already wears and her personal style