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3 Carat Lab Grown Diamond Rings

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

The Gilda heart engagement ring setting in 18K Yellow Gold | RockHer
The Gilda Five Prong Comfort Fit Claw Solitaire Heart Engagement Ring Setting in 18K Yellow Gold
Five Prong Comfort Fit Claw Solitaire Heart · 18K Yellow Gold
$2,145.00
The Gilda marquise engagement ring setting in 18K Yellow Gold | RockHer
The Gilda Five Prong Comfort Fit Claw Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
Five Prong Comfort Fit Claw Solitaire Marquise · 18K Yellow Gold
$2,145.00
The Gilda oval engagement ring setting in 18K Yellow Gold | RockHer
The Gilda Five Prong Comfort Fit Claw Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
Five Prong Comfort Fit Claw Solitaire Oval · 18K Yellow Gold
$2,145.00
The Gilda princess engagement ring setting in 18K Yellow Gold | RockHer
The Gilda Five Prong Comfort Fit Claw Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Five Prong Comfort Fit Claw Solitaire Princess Cut · 18K Yellow Gold
$2,145.00
The Gilda pear engagement ring setting in 18K Yellow Gold | RockHer
The Gilda Five Prong Comfort Fit Claw Solitaire Pear Engagement Ring Setting in 18K Yellow Gold
Five Prong Comfort Fit Claw Solitaire Pear · 18K Yellow Gold
$2,145.00
The Gilda radiant engagement ring setting in 18K Yellow Gold | RockHer
The Gilda Five Prong Comfort Fit Claw Solitaire Radiant Cut Engagement Ring Setting in 18K Yellow Gold
Five Prong Comfort Fit Claw Solitaire Radiant Cut · 18K Yellow Gold
$2,145.00
The Gilda round engagement ring setting in 18K Yellow Gold | RockHer
The Gilda Five Prong Comfort Fit Claw Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Five Prong Comfort Fit Claw Solitaire Round · 18K Yellow Gold
$2,145.00
The Isolde asscher engagement ring setting in 18K Yellow Gold | RockHer
The Isolde Petite Knife Edge Solitaire Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Petite Knife Edge Solitaire Asscher Cut · 18K Yellow Gold
$1,805.00
The Isolde cushion engagement ring setting in 18K Yellow Gold | RockHer
The Isolde Petite Knife Edge Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Petite Knife Edge Solitaire Cushion Cut · 18K Yellow Gold
$1,805.00
The Isolde emerald engagement ring setting in 18K Yellow Gold | RockHer
The Isolde Petite Knife Edge Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Petite Knife Edge Solitaire Emerald Cut · 18K Yellow Gold
$1,805.00
The Isolde heart engagement ring setting in 18K Yellow Gold | RockHer
The Isolde Petite Knife Edge Solitaire Heart Engagement Ring Setting in 18K Yellow Gold
Petite Knife Edge Solitaire Heart · 18K Yellow Gold
$1,770.00
The Isolde marquise engagement ring setting in 18K Yellow Gold | RockHer
The Isolde Petite Knife Edge Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
Petite Knife Edge Solitaire Marquise · 18K Yellow Gold
$1,805.00
The Isolde oval engagement ring setting in 18K Yellow Gold | RockHer
The Isolde Petite Knife Edge Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
Petite Knife Edge Solitaire Oval · 18K Yellow Gold
$1,805.00
The Isolde princess engagement ring setting in 18K Yellow Gold | RockHer
The Isolde Petite Knife Edge Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Petite Knife Edge Solitaire Princess Cut · 18K Yellow Gold
$1,805.00
The Isolde pear engagement ring setting in 18K Yellow Gold | RockHer
The Isolde Petite Knife Edge Solitaire Pear Engagement Ring Setting in 18K Yellow Gold
Petite Knife Edge Solitaire Pear · 18K Yellow Gold
$1,805.00
The Isolde radiant engagement ring setting in 18K Yellow Gold | RockHer
The Isolde Petite Knife Edge Solitaire Radiant Cut Engagement Ring Setting in 18K Yellow Gold
Petite Knife Edge Solitaire Radiant Cut · 18K Yellow Gold
$1,805.00
The Isolde round engagement ring setting in 18K Yellow Gold | RockHer
The Isolde Petite Knife Edge Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Petite Knife Edge Solitaire Round · 18K Yellow Gold
$1,805.00
The Juliette asscher engagement ring setting in 18K Yellow Gold | RockHer
The Juliette Elegant Cathedral Squared Edge Solitaire Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Elegant Cathedral Squared Edge Solitaire Asscher Cut · 18K Yellow Gold
$3,545.00
The Juliette cushion engagement ring setting in 18K Yellow Gold | RockHer
The Juliette Elegant Cathedral Squared Edge Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Elegant Cathedral Squared Edge Solitaire Cushion Cut · 18K Yellow Gold
$3,545.00
The Juliette emerald engagement ring setting in 18K Yellow Gold | RockHer
The Juliette Elegant Cathedral Squared Edge Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Elegant Cathedral Squared Edge Solitaire Emerald Cut · 18K Yellow Gold
$3,545.00
The Juliette heart engagement ring setting in 18K Yellow Gold | RockHer
The Juliette Elegant Cathedral Squared Edge Solitaire Heart Engagement Ring Setting in 18K Yellow Gold
Elegant Cathedral Squared Edge Solitaire Heart · 18K Yellow Gold
$3,545.00
The Juliette marquise engagement ring setting in 18K Yellow Gold | RockHer
The Juliette Elegant Cathedral Squared Edge Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
Elegant Cathedral Squared Edge Solitaire Marquise · 18K Yellow Gold
$3,545.00
The Juliette oval engagement ring setting in 18K Yellow Gold | RockHer
The Juliette Elegant Cathedral Squared Edge Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
Elegant Cathedral Squared Edge Solitaire Oval · 18K Yellow Gold
$3,545.00
The Juliette princess engagement ring setting in 18K Yellow Gold | RockHer
The Juliette Elegant Cathedral Squared Edge Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Elegant Cathedral Squared Edge Solitaire Princess Cut · 18K Yellow Gold
$3,545.00
The Lolette princess engagement ring setting in 18K Yellow Gold | RockHer
The Lolette Classic Low Base Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Classic Low Base Solitaire Princess Cut · 18K Yellow Gold
$1,805.00
The Lolette pear engagement ring setting in 18K Yellow Gold | RockHer
The Lolette Classic Low Base Solitaire Pear Engagement Ring Setting in 18K Yellow Gold
Classic Low Base Solitaire Pear · 18K Yellow Gold
$1,805.00
The Lolette radiant engagement ring setting in 18K Yellow Gold | RockHer
The Lolette Classic Low Base Solitaire Radiant Cut Engagement Ring Setting in 18K Yellow Gold
Classic Low Base Solitaire Radiant Cut · 18K Yellow Gold
$1,805.00
The Lolette round engagement ring setting in 18K Yellow Gold | RockHer
The Lolette Classic Low Base Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Classic Low Base Solitaire Round · 18K Yellow Gold
$1,805.00
The Marguerite princess engagement ring setting in 18K Yellow Gold | RockHer
The Marguerite Bypass Twist Pavé Swirl Princess Cut Engagement Ring Setting in 18K Yellow Gold
Bypass Twist Pavé Swirl Princess Cut · 18K Yellow Gold
$4,695.00
The Marguerite round engagement ring setting in 18K Yellow Gold | RockHer
The Marguerite Bypass Twist Pavé Swirl Round Engagement Ring Setting in 18K Yellow Gold
Bypass Twist Pavé Swirl Round · 18K Yellow Gold
$4,655.00
The Micaela princess engagement ring setting in 18K Yellow Gold | RockHer
The Micaela Pinched Channel Side Stone Princess Cut Engagement Ring Setting in 18K Yellow Gold
Pinched Channel Side Stone Princess Cut · 18K Yellow Gold
$3,325.00
The Micaela round engagement ring setting in 18K Yellow Gold | RockHer
The Micaela Pinched Channel Side Stone Round Engagement Ring Setting in 18K Yellow Gold
Pinched Channel Side Stone Round · 18K Yellow Gold
$3,265.00
The Mimi cushion engagement ring setting in 18K Yellow Gold | RockHer
The Mimi Graduated Linear Pavé Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Graduated Linear Pavé Cushion Cut · 18K Yellow Gold
$3,745.00
The Mimi emerald engagement ring setting in 18K Yellow Gold | RockHer
The Mimi Graduated Linear Pavé Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Graduated Linear Pavé Emerald Cut · 18K Yellow Gold
$3,745.00
The Mimi princess engagement ring setting in 18K Yellow Gold | RockHer
The Mimi Diamond With Graduated Side Stone In 18kyellow Ct Tw Ey80161hivs Pr125rh Princess Cut Engagement Ring Setting in 18K Yellow Gold
Diamond With Graduated Side Stone In 18kyellow Ct Tw Ey80161hivs Pr125rh Princess Cut · 18K Yellow Gold
$3,745.00
The Mimi round engagement ring setting in 18K Yellow Gold | RockHer
The Mimi Graduated Linear Pavé Round Engagement Ring Setting in 18K Yellow Gold
Graduated Linear Pavé Round · 18K Yellow Gold
$3,710.00
The Diana asscher engagement ring setting in 18K Yellow Gold | RockHer
The Diana Tapered Baguette Three Stone Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Tapered Baguette Three Stone Asscher Cut · 18K Yellow Gold
$2,425.00
The Diana cushion engagement ring setting in 18K Yellow Gold | RockHer
The Diana Tapered Baguette Three Stone Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Tapered Baguette Three Stone Cushion Cut · 18K Yellow Gold
$2,425.00
The Diana emerald engagement ring setting in 18K Yellow Gold | RockHer
The Diana Tapered Baguette Three Stone Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Tapered Baguette Three Stone Emerald Cut · 18K Yellow Gold
$2,425.00
The Diana oval engagement ring setting in 18K Yellow Gold | RockHer
The Diana Tapered Baguette Three Stone Oval Engagement Ring Setting in 18K Yellow Gold
Tapered Baguette Three Stone Oval · 18K Yellow Gold
$2,425.00
The Diana round engagement ring setting in 18K Yellow Gold | RockHer
The Diana Tapered Baguette Three Stone Round Engagement Ring Setting in 18K Yellow Gold
Tapered Baguette Three Stone Round · 18K Yellow Gold
$2,425.00
The Christina emerald engagement ring setting in 18K Yellow Gold | RockHer
The Christina East West Horizontal Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
East West Horizontal Halo Emerald Cut · 18K Yellow Gold
$3,450.00
The Christina marquise engagement ring setting in 18K Yellow Gold | RockHer
The Christina East West Horizontal Halo Marquise Engagement Ring Setting in 18K Yellow Gold
East West Horizontal Halo Marquise · 18K Yellow Gold
$3,670.00
The Christina East West Pavé Halo Engagement Ring Setting for Oval Diamonds in 18K Yellow Gold | RockHer
The Christina East West Horizontal Halo Oval Engagement Ring Setting in 18K Yellow Gold
East West Horizontal Halo Oval · 18K Yellow Gold
$3,450.00
The Christina round engagement ring setting in 18K Yellow Gold | RockHer
The Christina East West Horizontal Halo Round Engagement Ring Setting in 18K Yellow Gold
East West Horizontal Halo Round · 18K Yellow Gold
$3,360.00
The Carole Split Shank Engagement Ring Setting for Emerald Cut Diamonds in 18K Yellow Gold | RockHer
The Carole Two Row Pavé Split Shank Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Two Row Pavé Split Shank Emerald Cut · 18K Yellow Gold
$4,090.00
The Carole marquise engagement ring setting in 18K Yellow Gold | RockHer
The Carole Two Row Pavé Split Shank Marquise Engagement Ring Setting in 18K Yellow Gold
Two Row Pavé Split Shank Marquise · 18K Yellow Gold
$4,090.00
The Carole princess engagement ring setting in 18K Yellow Gold | RockHer
The Carole Two Row Pavé Split Shank Princess Cut Engagement Ring Setting in 18K Yellow Gold
Two Row Pavé Split Shank Princess Cut · 18K Yellow Gold
$4,090.00
The Carole pear engagement ring setting in 18K Yellow Gold | RockHer
The Carole Two Row Pavé Split Shank Pear Engagement Ring Setting in 18K Yellow Gold
Two Row Pavé Split Shank Pear · 18K Yellow Gold
$4,090.00
The Carole round engagement ring setting in 18K Yellow Gold | RockHer
The Carole Two Row Pavé Split Shank Round Engagement Ring Setting in 18K Yellow Gold
Two Row Pavé Split Shank Round · 18K Yellow Gold
$3,985.00
The Tatyana princess engagement ring setting in 18K Yellow Gold | RockHer
The Tatyana Bypass Pavé Swirl Princess Cut Engagement Ring Setting in 18K Yellow Gold
Bypass Pavé Swirl Princess Cut · 18K Yellow Gold
$4,345.00
The Tatyana round engagement ring setting in 18K Yellow Gold | RockHer
The Tatyana Bypass Pavé Swirl Round Engagement Ring Setting in 18K Yellow Gold
Bypass Pavé Swirl Round · 18K Yellow Gold
$4,305.00
The Athena marquise engagement ring setting in 18K Yellow Gold | RockHer
The Athena Criss Cross Bypass Twist Marquise Engagement Ring Setting in 18K Yellow Gold
Criss Cross Bypass Twist Marquise · 18K Yellow Gold
$2,795.00
The Athena oval engagement ring setting in 18K Yellow Gold | RockHer
The Athena Criss Cross Bypass Twist Oval Engagement Ring Setting in 18K Yellow Gold
Criss Cross Bypass Twist Oval · 18K Yellow Gold
$2,795.00
The Athena round engagement ring setting in 18K Yellow Gold | RockHer
The Athena Criss Cross Bypass Twist Round Engagement Ring Setting in 18K Yellow Gold
Criss Cross Bypass Twist Round · 18K Yellow Gold
$2,795.00
The Caroline emerald engagement ring setting in 18K Yellow Gold | RockHer
The Caroline Three Stone Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Three Stone Emerald Cut · 18K Yellow Gold
$3,450.00
The Clover cushion engagement ring setting in 18K Yellow Gold | RockHer
The Clover Knife Edge Pavé Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Knife Edge Pavé Cushion Cut · 18K Yellow Gold
$3,875.00
The Clover marquise engagement ring setting in 18K Yellow Gold | RockHer
The Clover Knife Edge Pavé Marquise Engagement Ring Setting in 18K Yellow Gold
Knife Edge Pavé Marquise · 18K Yellow Gold
$3,875.00
The Clover oval engagement ring setting in 18K Yellow Gold | RockHer
The Clover Knife Edge Pavé Oval Engagement Ring Setting in 18K Yellow Gold
Knife Edge Pavé Oval · 18K Yellow Gold
$3,875.00
The Clover princess engagement ring setting in 18K Yellow Gold | RockHer
The Clover Knife Edge Pavé Princess Cut Engagement Ring Setting in 18K Yellow Gold
Knife Edge Pavé Princess Cut · 18K Yellow Gold
$3,875.00
Made Entirely to Order · Every Time✦ Natural Accent Diamonds✦ Solid Gold & Platinum Only✦ 40 Day Returns✦ GIA & IGI Certified✦Made 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.