Home 3 Carat Lab Grown Diamond Rings

3 Carat Lab Grown Diamond Rings

Fine jewelry in solid gold and platinum, made to order in our Los Angeles atelier.

The Taylor marquise engagement ring setting in 18K Yellow Gold | RockHer
The Taylor Pavé Halo Marquise Engagement Ring Setting in 18K Yellow Gold
Pavé Halo Marquise · 18K Yellow Gold
$5,030.00
The Taylor Pavé Halo Engagement Ring Setting for Oval Diamonds in 18K Yellow Gold | RockHer
The Taylor Pavé Halo Oval Engagement Ring Setting in 18K Yellow Gold
Pavé Halo Oval · 18K Yellow Gold
$4,950.00
The Taylor pear engagement ring setting in 18K Yellow Gold | RockHer
The Taylor Pavé Halo Pear Engagement Ring Setting in 18K Yellow Gold
Pavé Halo Pear · 18K Yellow Gold
$4,970.00
The Taylor Pavé Halo Round Engagement Ring Setting in 18K Yellow Gold
The Taylor Pavé Halo Round Engagement Ring Setting in 18K Yellow Gold
Pavé Halo Round · 18K Yellow Gold
$4,915.00
The Gwen cushion engagement ring setting in 18K Yellow Gold | RockHer
The Gwen Double Row Micro Set Pavé Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Double Row Micro Set Pavé Cushion Cut · 18K Yellow Gold
$4,255.00
The Gwen princess engagement ring setting in 18K Yellow Gold | RockHer
The Gwen Double Row Micro Set Pavé Princess Cut Engagement Ring Setting in 18K Yellow Gold
Double Row Micro Set Pavé Princess Cut · 18K Yellow Gold
$4,325.00
The Gwen round engagement ring setting in 18K Yellow Gold | RockHer
The Gwen Double Row Micro Set Pavé Round Engagement Ring Setting in 18K Yellow Gold
Double Row Micro Set Pavé Round · 18K Yellow Gold
$4,215.00
The Presley cushion engagement ring setting in 18K Yellow Gold | RockHer
The Presley Split Shank Pavé Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Split Shank Pavé Cushion Cut · 18K Yellow Gold
$4,240.00
The Presley princess engagement ring setting in 18K Yellow Gold | RockHer
The Presley Split Shank Pavé Princess Cut Engagement Ring Setting in 18K Yellow Gold
Split Shank Pavé Princess Cut · 18K Yellow Gold
$4,240.00
The Presley round engagement ring setting in 18K Yellow Gold | RockHer
The Presley Split Shank Pavé Round Engagement Ring Setting in 18K Yellow Gold
Split Shank Pavé Round · 18K Yellow Gold
$4,205.00
The Joss cushion engagement ring setting in 18K Yellow Gold | RockHer
The Joss Double Row Prong French Pavé Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Double Row Prong French Pavé Cushion Cut · 18K Yellow Gold
$3,360.00
The Joss princess engagement ring setting in 18K Yellow Gold | RockHer
The Joss Double Row Prong French Pavé Princess Cut Engagement Ring Setting in 18K Yellow Gold
Double Row Prong French Pavé Princess Cut · 18K Yellow Gold
$3,360.00
The Joss Engagement Ring Setting for Round Diamonds in 18K Yellow Gold | RockHer
The Joss Double Row Prong French Pavé Round Engagement Ring Setting in 18K Yellow Gold
Double Row Prong French Pavé Round · 18K Yellow Gold
$3,360.00
The Sadie cushion engagement ring setting in 18K Yellow Gold | RockHer
The Sadie Twisted Pavé Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Twisted Pavé Cushion Cut · 18K Yellow Gold
$5,395.00
The Sadie marquise engagement ring setting in 18K Yellow Gold | RockHer
The Sadie Twisted Pavé Marquise Engagement Ring Setting in 18K Yellow Gold
Twisted Pavé Marquise · 18K Yellow Gold
$5,395.00
The Sadie oval engagement ring setting in 18K Yellow Gold | RockHer
The Sadie Twisted Pavé Oval Engagement Ring Setting in 18K Yellow Gold
Twisted Pavé Oval · 18K Yellow Gold
$5,395.00
The Sadie princess engagement ring setting in 18K Yellow Gold | RockHer
The Sadie Twisted Pavé Princess Cut Engagement Ring Setting in 18K Yellow Gold
Twisted Pavé Princess Cut · 18K Yellow Gold
$5,395.00
The Sadie pear engagement ring setting in 18K Yellow Gold | RockHer
The Sadie Twisted Pavé Pear Engagement Ring Setting in 18K Yellow Gold
Twisted Pavé Pear · 18K Yellow Gold
$5,395.00
The Sadie round engagement ring setting in 18K Yellow Gold | RockHer
The Sadie Twisted Pavé Round Engagement Ring Setting in 18K Yellow Gold
Twisted Pavé Round · 18K Yellow Gold
$5,355.00
The Genesis cushion engagement ring setting in 18K Yellow Gold | RockHer
The Genesis Channel Pavé Halo Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Channel Pavé Halo Cushion Cut · 18K Yellow Gold
$3,975.00
The Genesis princess engagement ring setting in 18K Yellow Gold | RockHer
The Genesis Channel Pavé Halo Princess Cut Engagement Ring Setting in 18K Yellow Gold
Channel Pavé Halo Princess Cut · 18K Yellow Gold
$4,225.00
The Genesis round engagement ring setting in 18K Yellow Gold | RockHer
The Genesis Channel Pavé Halo Round Engagement Ring Setting in 18K Yellow Gold
Channel Pavé Halo Round · 18K Yellow Gold
$3,975.00
The Dylan asscher engagement ring setting in 18K Yellow Gold | RockHer
The Dylan Petite French Pavé Halo Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Petite French Pavé Halo Asscher Cut · 18K Yellow Gold
$2,985.00
The Dylan Pavé Halo Engagement Ring Setting for Emerald Cut Diamonds in 18K Yellow Gold | RockHer
The Dylan Petite French Pavé Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Petite French Pavé Halo Emerald Cut · 18K Yellow Gold
$2,985.00
The Dylan Petite French Pavé Halo Marquise Engagement Ring Setting in 18K Yellow Gold
The Dylan Petite French Pavé Halo Marquise Engagement Ring Setting in 18K Yellow Gold
Petite French Pavé Halo Marquise · 18K Yellow Gold
$3,080.00
The Dylan oval engagement ring setting in 18K Yellow Gold | RockHer
The Dylan Petite French Pavé Halo Oval Engagement Ring Setting in 18K Yellow Gold
Petite French Pavé Halo Oval · 18K Yellow Gold
$2,985.00
The Dylan pear engagement ring setting in 18K Yellow Gold | RockHer
The Dylan Petite French Pavé Halo Pear Engagement Ring Setting in 18K Yellow Gold
Petite French Pavé Halo Pear · 18K Yellow Gold
$2,985.00
The Dylan Petite French Pavé Halo Round Engagement Ring Setting in 18K Yellow Gold
The Dylan Petite French Pavé Halo Round Engagement Ring Setting in 18K Yellow Gold
Petite French Pavé Halo Round · 18K Yellow Gold
$2,890.00
The Guthrie cushion engagement ring setting in 18K Yellow Gold | RockHer
The Guthrie Floral Prong Halo Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Floral Prong Halo Cushion Cut · 18K Yellow Gold
$3,640.00
The Guthrie princess engagement ring setting in 18K Yellow Gold | RockHer
The Guthrie Floral Prong Halo Princess Cut Engagement Ring Setting in 18K Yellow Gold
Floral Prong Halo Princess Cut · 18K Yellow Gold
$3,640.00
The Guthrie round engagement ring setting in 18K Yellow Gold | RockHer
The Guthrie Floral Prong Halo Round Engagement Ring Setting in 18K Yellow Gold
Floral Prong Halo Round · 18K Yellow Gold
$3,605.00
The Faith oval engagement ring setting in 18K Yellow Gold | RockHer
The Faith Floral Prong Halo Oval Engagement Ring Setting in 18K Yellow Gold
Floral Prong Halo Oval · 18K Yellow Gold
$4,785.00
The Faith round engagement ring setting in 18K Yellow Gold | RockHer
The Faith Floral Prong Halo Round Engagement Ring Setting in 18K Yellow Gold
Floral Prong Halo Round · 18K Yellow Gold
$4,780.00
The Etta asscher engagement ring setting in 18K Yellow Gold | RockHer
The Etta Classic Shared Prong Halo Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Classic Shared Prong Halo Asscher Cut · 18K Yellow Gold
$3,710.00
The Etta cushion engagement ring setting in 18K Yellow Gold | RockHer
The Etta Classic Shared Prong Halo Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Classic Shared Prong Halo Cushion Cut · 18K Yellow Gold
$3,710.00
The Etta heart engagement ring setting in 18K Yellow Gold | RockHer
The Etta Classic Shared Prong Halo Heart Engagement Ring Setting in 18K Yellow Gold
Classic Shared Prong Halo Heart · 18K Yellow Gold
$3,710.00
The Etta marquise engagement ring setting in 18K Yellow Gold | RockHer
The Etta Classic Shared Prong Halo Marquise Engagement Ring Setting in 18K Yellow Gold
Classic Shared Prong Halo Marquise · 18K Yellow Gold
$3,805.00
The Etta princess engagement ring setting in 18K Yellow Gold | RockHer
The Etta Classic Shared Prong Halo Princess Cut Engagement Ring Setting in 18K Yellow Gold
Classic Shared Prong Halo Princess Cut · 18K Yellow Gold
$3,710.00
The Etta Classic Shared Prong Halo Pear Engagement Ring Setting in 18K Yellow Gold
The Etta Classic Shared Prong Halo Pear Engagement Ring Setting in 18K Yellow Gold
Classic Shared Prong Halo Pear · 18K Yellow Gold
$3,760.00
The Etta round engagement ring setting in 18K Yellow Gold | RockHer
The Etta Classic Shared Prong Halo Round Engagement Ring Setting in 18K Yellow Gold
Classic Shared Prong Halo Round · 18K Yellow Gold
$3,670.00
The Alannah Luxe French Pavé Halo Asscher Cut Engagement Ring Setting in 18K Yellow Gold
The Alannah Luxe French Pavé Halo Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Luxe French Pavé Halo Asscher Cut · 18K Yellow Gold
$4,900.00
The Alannah Pavé Halo Engagement Ring Setting for Cushion Diamonds in 18K Yellow Gold | RockHer
The Alannah Luxe French Pavé Halo Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Luxe French Pavé Halo Cushion Cut · 18K Yellow Gold
$4,715.00
The Alannah emerald engagement ring setting in 18K Yellow Gold | RockHer
The Alannah Luxe French Pavé Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Luxe French Pavé Halo Emerald Cut · 18K Yellow Gold
$4,900.00
The Alannah heart engagement ring setting in 18K Yellow Gold | RockHer
The Alannah Luxe French Pavé Halo Heart Engagement Ring Setting in 18K Yellow Gold
Luxe French Pavé Halo Heart · 18K Yellow Gold
$4,835.00
The Alannah marquise engagement ring setting in 18K Yellow Gold | RockHer
The Alannah Luxe French Pavé Halo Marquise Engagement Ring Setting in 18K Yellow Gold
Luxe French Pavé Halo Marquise · 18K Yellow Gold
$5,025.00
The Alannah Pavé Halo Engagement Ring Setting for Oval Diamonds in 18K Yellow Gold | RockHer
The Alannah Luxe French Pavé Halo Oval Engagement Ring Setting in 18K Yellow Gold
Luxe French Pavé Halo Oval · 18K Yellow Gold
$4,900.00
The Alannah princess engagement ring setting in 18K Yellow Gold | RockHer
The Alannah Luxe French Pavé Halo Princess Cut Engagement Ring Setting in 18K Yellow Gold
Luxe French Pavé Halo Princess Cut · 18K Yellow Gold
$4,790.00
The Alannah pear engagement ring setting in 18K Yellow Gold | RockHer
The Alannah Luxe French Pavé Halo Pear Engagement Ring Setting in 18K Yellow Gold
Luxe French Pavé Halo Pear · 18K Yellow Gold
$5,120.00
The Alannah radiant engagement ring setting in 18K Yellow Gold | RockHer
The Alannah Luxe French Pavé Halo Radiant Cut Engagement Ring Setting in 18K Yellow Gold
Luxe French Pavé Halo Radiant Cut · 18K Yellow Gold
$4,900.00
The Alannah round engagement ring setting in 18K Yellow Gold | RockHer
The Alannah Luxe French Pavé Halo Round Engagement Ring Setting in 18K Yellow Gold
Luxe French Pavé Halo Round · 18K Yellow Gold
$4,845.00
The Ella heart engagement ring setting in 18K Yellow Gold | RockHer
The Ella Micro Pavé Triple Row Halo Heart Engagement Ring Setting in 18K Yellow Gold
Micro Pavé Triple Row Halo Heart · 18K Yellow Gold
$5,725.00
The Ella oval engagement ring setting in 18K Yellow Gold | RockHer
The Ella Micro Pavé Triple Row Halo Oval Engagement Ring Setting in 18K Yellow Gold
Micro Pavé Triple Row Halo Oval · 18K Yellow Gold
$5,725.00
The Ella Micro Pavé Triple Row Halo Pear Engagement Ring Setting in 18K Yellow Gold
The Ella Micro Pavé Triple Row Halo Pear Engagement Ring Setting in 18K Yellow Gold
Micro Pavé Triple Row Halo Pear · 18K Yellow Gold
$5,695.00
The Ella round engagement ring setting in 18K Yellow Gold | RockHer
The Ella Micro Pavé Triple Row Halo Round Engagement Ring Setting in 18K Yellow Gold
Micro Pavé Triple Row Halo Round · 18K Yellow Gold
$5,690.00
The Aretha cushion engagement ring setting in 18K Yellow Gold | RockHer
The Aretha Split Shank Pavé Halo Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Split Shank Pavé Halo Cushion Cut · 18K Yellow Gold
$4,425.00
The Aretha princess engagement ring setting in 18K Yellow Gold | RockHer
The Aretha Split Shank Pavé Halo Princess Cut Engagement Ring Setting in 18K Yellow Gold
Split Shank Pavé Halo Princess Cut · 18K Yellow Gold
$4,425.00
The Audra Twisted Scalloped Pavé Halo Engagement Ring Setting for Cushion Diamonds in 18K Yellow Gold | RockHer
The Audra Twisted Scalloped Pavé Halo Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Twisted Scalloped Pavé Halo Cushion Cut · 18K Yellow Gold
$4,370.00
The Audra princess engagement ring setting in 18K Yellow Gold | RockHer
The Audra Twisted Scalloped Pavé Halo Princess Cut Engagement Ring Setting in 18K Yellow Gold
Twisted Scalloped Pavé Halo Princess Cut · 18K Yellow Gold
$4,370.00
The Audra round engagement ring setting in 18K Yellow Gold | RockHer
The Audra Twisted Scalloped Pavé Halo Round Engagement Ring Setting in 18K Yellow Gold
Twisted Scalloped Pavé Halo Round · 18K Yellow Gold
$4,335.00
The Joan Crossover Pavé Halo Cushion Cut Engagement Ring Setting in 18K Yellow Gold
The Joan Crossover Pavé Halo Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Crossover Pavé Halo Cushion Cut · 18K Yellow Gold
$4,230.00
Made Entirely to Order · Every Time Natural Accent Diamonds Solid Gold & Platinum Only 40 Day Returns GIA & IGI CertifiedMade Entirely to Order · Every Time Natural Accent Diamonds Solid Gold & Platinum Only 40 Day Returns GIA & IGI Certified
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Fine Jewelry Made to Order in Los Angeles

Every RockHer piece is made to order in our Los Angeles atelier and offered at one fair price. Our gemology team inspects every piece before it ships, and every order carries a 40 day return window and a lifetime warranty.

Good to Know

Fine Jewelry Questions

How is each piece made?
Every piece is made to order in our Los Angeles atelier and inspected by our gemology team before it ships.
How long until my order arrives?
Made to order pieces are crafted in 8 to 12 business days, then shipped fully insured with a signature required at delivery.
What if it isn't right?
You have a 40 day return window on pieces that are not engraved or custom designed, and a lifetime warranty on every piece.
Talk to a Jeweler

Not sure where to begin?

One conversation with a gemologist replaces a hundred open tabs. We will guide you the way we would guide a close friend.

John Anderson · Lead Gemologist · 1‑800‑779‑1726

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Eco-Friendly Grandeur: Discover 3 Carat Lab Grown Diamond Rings

Make a bold and sustainable statement with our collection of 3 carat lab grown diamond rings. These stunning, ethically created diamonds offer the same brilliance and quality as mined stones, combining modern technology with responsible luxury, perfect for the conscious buyer who desires both size and style.

Why Choose 3 Carat Lab Grown Diamond Rings?

A 3 carat lab grown diamond ring delivers impressive size and exceptional sparkle with a significantly lower environmental footprint. Lab grown diamonds are chemically and physically identical to natural diamonds, providing excellent value without compromising beauty.

Popular Styles Featuring Lab Grown Diamonds:

  • Solitaire Rings: Classic and elegant designs highlighting the center stone
  • Halo Settings: Surrounding the diamond with smaller stones for extra brilliance
  • Three-Stone Rings: Symbolizing your journey with complementary side stones
  • Vintage-Inspired Designs: Combining classic detailing with modern ethics
  • Modern Minimalist: Sleek bands emphasizing the diamond’s fire and clarity

Customization Options:
  • Metal Choices: 14k or 18k yellow, white, rose gold, and platinum
  • Settings: Prong, bezel, pave, and tension for style and security
  • Certification: IGI certified diamonds ensuring quality and authenticity

Expert Tip:
Focus on cut quality to maximize brilliance. Pair your lab grown diamond with recycled metals for an entirely sustainable ring.

Our 3 carat lab grown diamond rings collection offers luxury, size, and ethics, perfect for modern lovers seeking conscious elegance.