3 Carat Lab-Grown Diamond Engagement Rings

Dreaming of a ring that dazzles? Our 3 carat diamond engagement rings offer an impressive display of brilliance and luxury. This size is perfect for those who desire a bold statement piece that captures attention and admiration. Each ring in our collection is carefully crafted to highlight the beauty of lab-grown diamonds, making them an ethical and stunning choice. 

  • Filters
    Filter by
    Diamond Shape
    Style
    Flush Fit
    Price
    $
    $
    Total Carat
    Clear all
Save 25%
Esme Oval Split Shank Solitaire Diamond Ring in yellow gold with a 2 carat lab grown oval diamond and elegant split shank design. 2 carat Esme Oval Split Shank Solitaire Diamond Ring worn on hand, showcasing its yellow gold band and oval lab grown diamond.

Esme Oval Split Shank Lab Grown Diamond Ring

$8,926.00 $11,901.00
Metal
10K 10K 14K 14K 18K 18K PT
Total Carat
1.0 1.5 2.0 2.5 3.0 4.0
Save 30%
Astra Oval Three Stone Lab Grown Diamond Ring Astra Oval Three Stone Lab Grown Diamond Ring

Astra Oval Three Stone Lab Grown Diamond Ring

$16,712.00 $23,874.00
Metal
10K 10K 14K 14K 18K 18K PT
Total Carat
3.0

3-Carat Lab-Grown Diamond Engagement Rings

For couples who believe their love story deserves to be told in bold strokes, our 3-carat lab-grown diamond engagement rings offer breathtaking presence without the breathtaking price tag of mined diamonds. These extraordinary stones represent the sweet spot where luxury becomes accessible - where you can own a diamond that would typically require generational wealth, all while making an environmentally conscious choice. The numbers speak for themselves: while a quality 3-carat natural diamond might command $25,000 or more, our lab-grown equivalents deliver identical brilliance and quality for just $2000+. This dramatic price difference isn't about compromising on quality (every diamond is IGI-certified with Excellent or Ideal cut grades), but rather about eliminating the artificial scarcity and environmental costs of mining.

The result? A diamond that lets you celebrate your commitment without financial regret, a center piece that will draw admiring glances for generations while representing your shared values of intelligence and responsibility.

Are lab-grown diamonds real diamonds?

Yes! Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds. They're graded using the same 4Cs (cut, color, clarity, and carat weight) by reputable labs like IGI. The only difference is their origin - created sustainably in a lab rather than mined from the earth.

Is a 3-carat diamond too big for everyday wear?

While a 3-carat diamond makes a definite statement, many clients wear them daily without issue. We recommend choosing a secure setting (like a bezel or cathedral design) and considering your lifestyle.

What clarity grade should I choose for a 3-carat diamond?

For stones this size, we recommend VS2 clarity or higher to ensure eye-clean perfection. The larger surface area makes inclusions slightly more visible than in smaller carat weights.