3 Carat Diamond Engagement Rings

3 Carat Diamond Engagement Rings

Our custom 3 carat diamond engagement ring collection represents the pinnacle of luxury. Each ring is a masterpiece of craftsmanship, featuring premium CVD lab-grown or natural diamonds in exquisite settings. At 9mm+ round face-up, these rings deliver an unforgettable visual impact — all at factory-direct prices that make luxury accessible.

Ultra-Luxury: 3 Carat Diamond Engagement Rings

A 3 carat diamond engagement ring is the ultimate symbol of commitment and success. At 9-9.5mm round face-up, it offers celebrity-level presence. Our direct manufacturing model makes this rarefied size surprisingly accessible — you get the same quality as high-end luxury brands at a fraction of the price.

  • Breathtaking Size: 9mm+ face-up — an unmistakable display of love and luxury.
  • Premium Grade: All diamonds selected for optimal cut, color, and clarity.
  • Master Craftsmanship: Each setting engineered for the secure mounting of larger stones.
  • Custom Design: Every element tailored to your vision — from stone shape to milgrain detailing.

Our 3 Carat Diamond Engagement Ring Collection

Browse our selection below. Each ring is made to order with your choice of diamond and customization.

Frequently Asked Questions About 3 Carat Diamond Rings

How much does a 3 carat diamond engagement ring cost?

Our 3 carat diamond rings start at $1,499 (lab-grown, sterling silver) and range up to $18,000+ (natural diamond, platinum). Traditional jewelers charge $30,000–$80,000+ for comparable quality.

Is a 3 carat diamond ring too large?

At 9mm+ round face-up, a 3 carat diamond is undeniably large. It's a ring for those who want to make a definitive statement. We recommend exploring similar sizes in person before committing.

What diamond shapes work best at 3 carats?

Round brilliant, oval, cushion, and emerald cuts all perform beautifully at 3 carats. Oval and cushion cuts can appear larger face-up due to their elongated shapes.

Do you offer insurance appraisals?

Yes, we provide detailed appraisal documents for insurance purposes with every 3 carat diamond ring purchase.

Experience the Ultimate in Luxury

Ready for the ring of a lifetime? Contact our design team to discuss your vision for a custom 3 carat diamond engagement ring. From the first sketch to the final polish, we ensure perfection at every step.

Schedule Your VIP Design Consultation

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  • 3CT Sterling Silver Engagement Rings Oval Moissanite Wedding Promise Side Stone Rings 3CT Sterling Silver Engagement Rings Oval Moissanite Wedding Promise Side Stone Rings three

    3CT Sterling Silver Oval Cut CVD Diamond Engagement Rings

    This elegant Diamond ring is beautifully crafted in Stering Silver, offering exceptional brilliance and long-lasting shine. The sparkling diamond design showcases refined craftsmanship and a timeless silhouette, made to highlight your center stone beautifully. Ideal for weddings, engagements, anniversaries, or promise gifts, this ring...
    £912.00 GBP
    £3,304.00 GBP
    £912.00 GBP
  • 2 PC Marquise Cut CVD Diamond Vintage Platinum Bridal Wedding Engagement Ring Set for Women2 PC Marquise Cut CVD Diamond Vintage Platinum Bridal Wedding Engagement Ring Set for Women

    2 PC Marquise Cut CVD Diamond Vintage Platinum Bridal Wedding Engagement Ring Set for Women

    This elegant Diamond ring is beautifully crafted in Stering Silver, offering exceptional brilliance and long-lasting shine. The sparkling diamond design showcases refined craftsmanship and a timeless silhouette, made to highlight your center stone beautifully. Ideal for weddings, engagements, anniversaries, or promise gifts, this ring...
    £2,084.00 GBP
    £2,500.00 GBP
    £2,084.00 GBP
  • 2 PC Radiant Cut 8 Ct.tw. CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women2 PC Radiant Cut 8 Ct.tw. CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women

    2 PC Radiant Cut 8 Ct.tw. CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women

    This elegant Diamond ring is beautifully crafted in Stering Silver, offering exceptional brilliance and long-lasting shine. The sparkling diamond design showcases refined craftsmanship and a timeless silhouette, made to highlight your center stone beautifully. Ideal for weddings, engagements, anniversaries, or promise gifts, this ring...
    £1,021.00 GBP
    £1,697.00 GBP
    £1,021.00 GBP
  • 2 PC set 3 Carat Emerald Cut CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women2 PC set 3 Carat Emerald Cut CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women

    2 PC set 3 Carat Emerald Cut CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women

    This elegant Diamond ring is beautifully crafted in Stering Silver, offering exceptional brilliance and long-lasting shine. The sparkling diamond design showcases refined craftsmanship and a timeless silhouette, made to highlight your center stone beautifully. Ideal for weddings, engagements, anniversaries, or promise gifts, this ring...
    £1,072.00 GBP
    £1,697.00 GBP
    £1,072.00 GBP
  • 2PC Pear Cut 4 CT CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set Open Band for Women2PC Pear Cut 4 CT CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set Open Band for Women

    2PC Pear Cut 4 CT CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set Open Band for Women

    This elegant Diamond ring is beautifully crafted in Stering Silver, offering exceptional brilliance and long-lasting shine. The sparkling diamond design showcases refined craftsmanship and a timeless silhouette, made to highlight your center stone beautifully. Ideal for weddings, engagements, anniversaries, or promise gifts, this ring...
    £884.00 GBP
    £1,697.00 GBP
    £884.00 GBP
  • 2 PC Radiant Cut 5 Carat CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women2 PC Radiant Cut 5 Carat CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women

    2 PC Radiant Cut 5 Carat CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women

    This elegant Diamond ring is beautifully crafted in Stering Silver, offering exceptional brilliance and long-lasting shine. The sparkling diamond design showcases refined craftsmanship and a timeless silhouette, made to highlight your center stone beautifully. Ideal for weddings, engagements, anniversaries, or promise gifts, this ring...
    £1,021.00 GBP
    £3,217.00 GBP
    £1,021.00 GBP
  • 2 PC Princess Cut Hidden Halo Solitaire 3 CT CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women2 PC Princess Cut Hidden Halo Solitaire 3 CT CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women

    2 PC Princess Cut Hidden Halo Solitaire 3 CT CVD Diamond Sterling Silver Bridal Wedding Engagement Ring Set for Women

    This elegant Diamond ring is beautifully crafted in Stering Silver, offering exceptional brilliance and long-lasting shine. The sparkling diamond design showcases refined craftsmanship and a timeless silhouette, made to highlight your center stone beautifully. Ideal for weddings, engagements, anniversaries, or promise gifts, this ring...
    £684.00 GBP
    £1,697.00 GBP
    £684.00 GBP
  • 2 PC Round Cut CVD Diamond 925 Sterling Silver Bridal Wedding Engagement Promise Ring Set for Women2 PC Round Cut CVD Diamond 925 Sterling Silver Bridal Wedding Engagement Promise Ring Set for Women

    2 PC Round Cut CVD Diamond 925 Sterling Silver Bridal Wedding Engagement Promise Ring Set for Women

    This elegant Diamond ring is beautifully crafted in Stering Silver, offering exceptional brilliance and long-lasting shine. The sparkling diamond design showcases refined craftsmanship and a timeless silhouette, made to highlight your center stone beautifully. Ideal for weddings, engagements, anniversaries, or promise gifts, this ring...
    £2,024.00 GBP
    £1,697.00 GBP
    £2,024.00 GBP
  • 2PC Oval Cut 3 CT.T.W CVD Diamond 925 Sterling Silver Bridal Engagement Wedding Ring Set for Women2PC Oval Cut 3 CT.T.W CVD Diamond 925 Sterling Silver Bridal Engagement Wedding Ring Set for Women

    2PC Oval Cut 3 CT.T.W CVD Diamond 925 Sterling Silver Bridal Engagement Wedding Ring Set for Women

    This elegant Diamond ring is beautifully crafted in Stering Silver, offering exceptional brilliance and long-lasting shine. The sparkling diamond design showcases refined craftsmanship and a timeless silhouette, made to highlight your center stone beautifully. Ideal for weddings, engagements, anniversaries, or promise gifts, this ring...
    £656.00 GBP
    £1,697.00 GBP
    £656.00 GBP
  • 2PC Princess Cut 3 CT CVD Diamond 925 Sterling Silver Bridal Engagement Wedding Ring Set for Women2PC Princess Cut 3 CT CVD Diamond 925 Sterling Silver Bridal Engagement Wedding Ring Set for Women

    2PC Princess Cut 3 CT CVD Diamond 925 Sterling Silver Bridal Engagement Wedding Ring Set for Women

    This elegant Diamond ring is beautifully crafted in Stering Silver, offering exceptional brilliance and long-lasting shine. The sparkling diamond design showcases refined craftsmanship and a timeless silhouette, made to highlight your center stone beautifully. Ideal for weddings, engagements, anniversaries, or promise gifts, this ring...
    £548.00 GBP
    £1,697.00 GBP
    £548.00 GBP
  • 2PCS Oval Cut 3 Ct. t.wCVD Diamond 925 Sterling Silver Bridal Engagement Wedding Ring Set for Women2PCS Oval Cut 3 Ct. t.wCVD Diamond 925 Sterling Silver Bridal Engagement Wedding Ring Set for Women

    2PCS Oval Cut 3 Ct. t.wCVD Diamond 925 Sterling Silver Bridal Engagement Wedding Ring Set for Women

    This elegant Diamond ring is beautifully crafted in Stering Silver, offering exceptional brilliance and long-lasting shine. The sparkling diamond design showcases refined craftsmanship and a timeless silhouette, made to highlight your center stone beautifully. Ideal for weddings, engagements, anniversaries, or promise gifts, this ring...
    £730.00 GBP
    £1,697.00 GBP
    £730.00 GBP

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