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 Charlotte heart engagement ring setting in 18K Yellow Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Heart Engagement Ring Setting in 18K Yellow Gold
Cathedral Squared Edge Solitaire Heart · 18K Yellow Gold
$3,725.00
The Ellie marquise engagement ring setting in 18K Yellow Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
Cathedral Squared Edge Solitaire Marquise · 18K Yellow Gold
$3,725.00
The Charlotte oval engagement ring setting in 18K Yellow Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
Cathedral Squared Edge Solitaire Oval · 18K Yellow Gold
$3,725.00
The Charlotte princess engagement ring setting in 18K Yellow Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Cathedral Squared Edge Solitaire Princess Cut · 18K Yellow Gold
$3,725.00
The Charlotte pear engagement ring setting in 18K Yellow Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Pear Engagement Ring Setting in 18K Yellow Gold
Cathedral Squared Edge Solitaire Pear · 18K Yellow Gold
$3,725.00
The Charlotte radiant engagement ring setting in 18K Yellow Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Radiant Cut Engagement Ring Setting in 18K Yellow Gold
Cathedral Squared Edge Solitaire Radiant Cut · 18K Yellow Gold
$3,725.00
The Charlotte round engagement ring setting in 18K Yellow Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Cathedral Squared Edge Solitaire Round · 18K Yellow Gold
$3,690.00
The Tori Rounded Comfort Fit Solitaire Asscher Cut Engagement Ring Setting in 18K Yellow Gold
The Tori Rounded Comfort Fit Solitaire Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Rounded Comfort Fit Solitaire Asscher Cut · 18K Yellow Gold
$2,050.00
The Tori emerald engagement ring setting in 18K Yellow Gold | RockHer
The Tori Rounded Comfort Fit Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Rounded Comfort Fit Solitaire Emerald Cut · 18K Yellow Gold
$2,050.00
The Tori heart engagement ring setting in 18K Yellow Gold | RockHer
The Tori Rounded Comfort Fit Solitaire Heart Engagement Ring Setting in 18K Yellow Gold
Rounded Comfort Fit Solitaire Heart · 18K Yellow Gold
$2,050.00
The Tori marquise engagement ring setting in 18K Yellow Gold | RockHer
The Tori Rounded Comfort Fit Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
Rounded Comfort Fit Solitaire Marquise · 18K Yellow Gold
$2,050.00
The Tori princess engagement ring setting in 18K Yellow Gold | RockHer
The Tori Rounded Comfort Fit Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Rounded Comfort Fit Solitaire Princess Cut · 18K Yellow Gold
$2,050.00
The Tori pear engagement ring setting in 18K Yellow Gold | RockHer
The Tori Rounded Comfort Fit Solitaire Pear Engagement Ring Setting in 18K Yellow Gold
Rounded Comfort Fit Solitaire Pear · 18K Yellow Gold
$2,050.00
The Tori radiant engagement ring setting in 18K Yellow Gold | RockHer
The Tori Rounded Comfort Fit Solitaire Radiant Cut Engagement Ring Setting in 18K Yellow Gold
Rounded Comfort Fit Solitaire Radiant Cut · 18K Yellow Gold
$2,050.00
The Tori round engagement ring setting in 18K Yellow Gold | RockHer
The Tori Rounded Comfort Fit Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Rounded Comfort Fit Solitaire Round · 18K Yellow Gold
$2,050.00
The Gladys asscher engagement ring setting in 18K Yellow Gold | RockHer
The Gladys Pinched Cathedral Solitaire Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Pinched Cathedral Solitaire Asscher Cut · 18K Yellow Gold
$3,080.00
The Gladys cushion engagement ring setting in 18K Yellow Gold | RockHer
The Gladys Pinched Cathedral Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Pinched Cathedral Solitaire Cushion Cut · 18K Yellow Gold
$3,080.00
The Gladys emerald engagement ring setting in 18K Yellow Gold | RockHer
The Gladys Pinched Cathedral Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Pinched Cathedral Solitaire Emerald Cut · 18K Yellow Gold
$3,080.00
The Gladys heart engagement ring setting in 18K Yellow Gold | RockHer
The Gladys Pinched Cathedral Solitaire Heart Engagement Ring Setting in 18K Yellow Gold
Pinched Cathedral Solitaire Heart · 18K Yellow Gold
$3,080.00
The Gladys marquise engagement ring setting in 18K Yellow Gold | RockHer
The Gladys Pinched Cathedral Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
Pinched Cathedral Solitaire Marquise · 18K Yellow Gold
$3,080.00
The Gladys princess engagement ring setting in 18K Yellow Gold | RockHer
The Gladys Pinched Cathedral Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Pinched Cathedral Solitaire Princess Cut · 18K Yellow Gold
$3,080.00
The Gladys pear engagement ring setting in 18K Yellow Gold | RockHer
The Gladys Pinched Cathedral Solitaire Pear Engagement Ring Setting in 18K Yellow Gold
Pinched Cathedral Solitaire Pear · 18K Yellow Gold
$3,080.00
The Gladys radiant engagement ring setting in 18K Yellow Gold | RockHer
The Gladys Pinched Cathedral Solitaire Radiant Cut Engagement Ring Setting in 18K Yellow Gold
Pinched Cathedral Solitaire Radiant Cut · 18K Yellow Gold
$3,080.00
The Viola asscher engagement ring setting in 18K Yellow Gold | RockHer
The Viola Contemporary Comfort Fit Flat Shank Solitaire Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Contemporary Comfort Fit Flat Shank Solitaire Asscher Cut · 18K Yellow Gold
$2,145.00
The Viola cushion engagement ring setting in 18K Yellow Gold | RockHer
The Viola Contemporary Comfort Fit Flat Shank Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Contemporary Comfort Fit Flat Shank Solitaire Cushion Cut · 18K Yellow Gold
$2,145.00
The Viola Contemporary Comfort Fit Flat Shank Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
The Viola Contemporary Comfort Fit Flat Shank Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Contemporary Comfort Fit Flat Shank Solitaire Emerald Cut · 18K Yellow Gold
$2,145.00
The Viola heart engagement ring setting in 18K Yellow Gold | RockHer
The Viola Contemporary Comfort Fit Flat Shank Solitaire Heart Engagement Ring Setting in 18K Yellow Gold
Contemporary Comfort Fit Flat Shank Solitaire Heart · 18K Yellow Gold
$2,145.00
The Viola Contemporary Comfort Fit Flat Shank Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
The Viola Contemporary Comfort Fit Flat Shank Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
Contemporary Comfort Fit Flat Shank Solitaire Marquise · 18K Yellow Gold
$2,145.00
The Viola oval engagement ring setting in 18K Yellow Gold | RockHer
The Viola Contemporary Comfort Fit Flat Shank Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
Contemporary Comfort Fit Flat Shank Solitaire Oval · 18K Yellow Gold
$2,145.00
The Viola princess engagement ring setting in 18K Yellow Gold | RockHer
The Viola Contemporary Comfort Fit Flat Shank Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Contemporary Comfort Fit Flat Shank Solitaire Princess Cut · 18K Yellow Gold
$2,145.00
The Viola pear engagement ring setting in 18K Yellow Gold | RockHer
The Viola Contemporary Comfort Fit Flat Shank Solitaire Pear Engagement Ring Setting in 18K Yellow Gold
Contemporary Comfort Fit Flat Shank Solitaire Pear · 18K Yellow Gold
$2,145.00
The Viola round engagement ring setting in 18K Yellow Gold | RockHer
The Viola Contemporary Comfort Fit Flat Shank Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Contemporary Comfort Fit Flat Shank Solitaire Round · 18K Yellow Gold
$2,145.00
The Carmen asscher engagement ring setting in 18K Yellow Gold | RockHer
The Carmen Beveled Edge Comfort Fit Solitaire Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Beveled Edge Comfort Fit Solitaire Asscher Cut · 18K Yellow Gold
$2,610.00
The Carmen cushion engagement ring setting in 18K Yellow Gold | RockHer
The Carmen Beveled Edge Comfort Fit Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Beveled Edge Comfort Fit Solitaire Cushion Cut · 18K Yellow Gold
$2,610.00
The Carmen heart engagement ring setting in 18K Yellow Gold | RockHer
The Carmen Beveled Edge Comfort Fit Solitaire Heart Engagement Ring Setting in 18K Yellow Gold
Beveled Edge Comfort Fit Solitaire Heart · 18K Yellow Gold
$2,610.00
The Carmen marquise engagement ring setting in 18K Yellow Gold | RockHer
The Carmen Beveled Edge Comfort Fit Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
Beveled Edge Comfort Fit Solitaire Marquise · 18K Yellow Gold
$2,610.00
The Carmen oval engagement ring setting in 18K Yellow Gold | RockHer
The Carmen Beveled Edge Comfort Fit Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
Beveled Edge Comfort Fit Solitaire Oval · 18K Yellow Gold
$2,610.00
The Carmen princess engagement ring setting in 18K Yellow Gold | RockHer
The Carmen Beveled Edge Comfort Fit Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Beveled Edge Comfort Fit Solitaire Princess Cut · 18K Yellow Gold
$2,610.00
The Carmen pear engagement ring setting in 18K Yellow Gold | RockHer
The Carmen Beveled Edge Comfort Fit Solitaire Pear Engagement Ring Setting in 18K Yellow Gold
Beveled Edge Comfort Fit Solitaire Pear · 18K Yellow Gold
$2,610.00
The Carmen radiant engagement ring setting in 18K Yellow Gold | RockHer
The Carmen Beveled Edge Comfort Fit Solitaire Radiant Cut Engagement Ring Setting in 18K Yellow Gold
Beveled Edge Comfort Fit Solitaire Radiant Cut · 18K Yellow Gold
$2,610.00
The Carmen round engagement ring setting in 18K Yellow Gold | RockHer
The Carmen Beveled Edge Comfort Fit Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Beveled Edge Comfort Fit Solitaire Round · 18K Yellow Gold
$2,515.00
The Ellie asscher engagement ring setting in 18K Yellow Gold | RockHer
The Ellie Cathedral Comfort Fit Solitaire Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Cathedral Comfort Fit Solitaire Asscher Cut · 18K Yellow Gold
$2,515.00
The Ellie cushion engagement ring setting in 18K Yellow Gold | RockHer
The Ellie Cathedral Comfort Fit Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Cathedral Comfort Fit Solitaire Cushion Cut · 18K Yellow Gold
$2,515.00
The Elena Timeless Graduated Beveled Shank Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
The Elena Timeless Graduated Beveled Shank Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Timeless Graduated Beveled Shank Solitaire Emerald Cut · 18K Yellow Gold
$2,705.00
The Elena heart engagement ring setting in 18K Yellow Gold | RockHer
The Elena Timeless Graduated Beveled Shank Solitaire Heart Engagement Ring Setting in 18K Yellow Gold
Timeless Graduated Beveled Shank Solitaire Heart · 18K Yellow Gold
$2,705.00
The Elena Timeless Graduated Beveled Shank Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
The Elena Timeless Graduated Beveled Shank Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
Timeless Graduated Beveled Shank Solitaire Marquise · 18K Yellow Gold
$2,705.00
The Elena oval engagement ring setting in 18K Yellow Gold | RockHer
The Elena Timeless Graduated Beveled Shank Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
Timeless Graduated Beveled Shank Solitaire Oval · 18K Yellow Gold
$2,705.00
The Elena princess engagement ring setting in 18K Yellow Gold | RockHer
The Elena Timeless Graduated Beveled Shank Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Timeless Graduated Beveled Shank Solitaire Princess Cut · 18K Yellow Gold
$2,705.00
The Elena pear engagement ring setting in 18K Yellow Gold | RockHer
The Elena Timeless Graduated Beveled Shank Solitaire Pear Engagement Ring Setting in 18K Yellow Gold
Timeless Graduated Beveled Shank Solitaire Pear · 18K Yellow Gold
$2,705.00
The Elena round engagement ring setting in 18K Yellow Gold | RockHer
The Elena Timeless Graduated Beveled Shank Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Timeless Graduated Beveled Shank Solitaire Round · 18K Yellow Gold
$2,705.00
The Floria asscher engagement ring setting in 18K Yellow Gold | RockHer
The Floria Comfort Fit Claw Prong Solitaire Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Comfort Fit Claw Prong Solitaire Asscher Cut · 18K Yellow Gold
$1,805.00
The Floria cushion engagement ring setting in 18K Yellow Gold | RockHer
The Floria Comfort Fit Claw Prong Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Comfort Fit Claw Prong Solitaire Cushion Cut · 18K Yellow Gold
$1,805.00
The Floria heart engagement ring setting in 18K Yellow Gold | RockHer
The Floria Comfort Fit Claw Prong Solitaire Heart Engagement Ring Setting in 18K Yellow Gold
Comfort Fit Claw Prong Solitaire Heart · 18K Yellow Gold
$1,805.00
The Floria Comfort Fit Claw Prong Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
The Floria Comfort Fit Claw Prong Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
Comfort Fit Claw Prong Solitaire Marquise · 18K Yellow Gold
$1,805.00
The Floria princess engagement ring setting in 18K Yellow Gold | RockHer
The Floria Comfort Fit Claw Prong Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Comfort Fit Claw Prong Solitaire Princess Cut · 18K Yellow Gold
$1,805.00
The Floria pear engagement ring setting in 18K Yellow Gold | RockHer
The Floria Comfort Fit Claw Prong Solitaire Pear Engagement Ring Setting in 18K Yellow Gold
Comfort Fit Claw Prong Solitaire Pear · 18K Yellow Gold
$1,805.00
The Floria round engagement ring setting in 18K Yellow Gold | RockHer
The Floria Comfort Fit Claw Prong Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Comfort Fit Claw Prong Solitaire Round · 18K Yellow Gold
$1,805.00
The Gilda asscher engagement ring setting in 18K Yellow Gold | RockHer
The Gilda Five Prong Comfort Fit Claw Solitaire Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Five Prong Comfort Fit Claw Solitaire Asscher Cut · 18K Yellow Gold
$2,145.00
The Gilda cushion engagement ring setting in 18K Yellow Gold | RockHer
The Gilda Five Prong Comfort Fit Claw Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Five Prong Comfort Fit Claw Solitaire Cushion Cut · 18K Yellow Gold
$2,145.00
The Gilda emerald engagement ring setting in 18K Yellow Gold | RockHer
The Gilda Five Prong Comfort Fit Claw Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Five Prong Comfort Fit Claw Solitaire Emerald Cut · 18K Yellow Gold
$2,145.00
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.