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 Lana oval engagement ring setting in Platinum | RockHer
The Lana Secret Halo Adorned Prong Solitaire Oval Engagement Ring Setting in 18K White Gold
Secret Halo Adorned Prong Solitaire Oval · 18K White Gold
$3,080.00
The Ophelia round engagement ring setting in 18K White Gold | RockHer
The Ophelia Antique Wheat Bead Solitaire Round Engagement Ring Setting in 18K White Gold
Antique Wheat Bead Solitaire Round · 18K White Gold
$3,360.00
The Nera Floral Split Shank Halo Round Engagement Ring Setting in 14K Rose Gold
The Nera Floral Split Shank Halo Round Engagement Ring Setting in 14K Rose Gold
Floral Split Shank Halo Round · 14K Rose Gold
$3,265.00
The Brenda emerald engagement ring setting in 18K White Gold | RockHer
The Brenda High Hidden Halo Solitaire Emerald Cut Engagement Ring Setting in 18K White Gold
High Hidden Halo Solitaire Emerald Cut · 18K White Gold
$2,985.00
The Dolly Double Hidden Halo Solitaire Round Engagement Ring Setting in 18K Yellow Gold
The Dolly Double Hidden Halo Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Double Hidden Halo Solitaire Round · 18K Yellow Gold
$3,640.00
The Eartha oval engagement ring setting in Platinum | RockHer
The Eartha Upper Hidden Halo Solitaire Oval Engagement Ring Setting in Platinum
Upper Hidden Halo Solitaire Oval · Platinum
$2,610.00
The Joni oval engagement ring setting in Platinum | RockHer
The Joni Hidden Halo Solitaire Oval Engagement Ring Setting in Platinum
Hidden Halo Solitaire Oval · Platinum
$2,330.00
The Kai round engagement ring setting in Platinum | RockHer
The Kai Scroll Gallery Halo Round Engagement Ring Setting in 18K White Gold
Scroll Gallery Halo Round · 18K White Gold
$3,360.00
The Cyndi round engagement ring setting in Platinum | RockHer
The Cyndi Curved Hidden Halo Solitaire Round Engagement Ring Setting in 18K White Gold
Curved Hidden Halo Solitaire Round · 18K White Gold
$2,425.00
The Florence Vintage Scalloped Halo Round Engagement Ring Setting in 18K White Gold
The Florence Vintage Scalloped Halo Round Engagement Ring Setting in 18K White Gold
Vintage Scalloped Halo Round · 18K White Gold
$3,905.00
The Dixie Double Halo Round Engagement Ring Setting in 18K White Gold
The Dixie Double Halo Round Engagement Ring Setting in 18K White Gold
Double Halo Round · 18K White Gold
$5,910.00
The Calypso round engagement ring setting in 18K White Gold | RockHer
The Calypso Double Halo Round Engagement Ring Setting in 18K White Gold
Double Halo Round · 18K White Gold
$5,415.00
The Blondie round engagement ring setting in Platinum | RockHer
The Blondie Double Hidden Halo Solitaire Round Engagement Ring Setting in Platinum
Double Hidden Halo Solitaire Round · Platinum
$3,730.00
The Shania Beaded Floral Halo Leaf Shoulders Round Engagement Ring Setting in 18K White Gold
The Shania Beaded Floral Halo Leaf Shoulders Round Engagement Ring Setting in 18K White Gold
Beaded Floral Halo Leaf Shoulders Round · 18K White Gold
$4,210.00
The Dolly Double Hidden Halo Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
The Dolly Double Hidden Halo Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
Double Hidden Halo Solitaire Oval · 18K Yellow Gold
$3,545.00
The Andrea Three Stone Halo Round Engagement Ring Setting in 18K White Gold
The Andrea Three Stone Halo Round Engagement Ring Setting in 18K White Gold
Three Stone Halo Round · 18K White Gold
$5,070.00
The Abbey Hidden Halo Pavé Oval Engagement Ring Setting in 18K White Gold
The Abbey Hidden Halo Pavé Oval Engagement Ring Setting in 18K White Gold
Hidden Halo Pavé Oval · 18K White Gold
$3,170.00
The Anna Three Stone Halo Round Engagement Ring Setting in 18K White Gold
The Anna Three Stone Halo Round Engagement Ring Setting in 18K White Gold
Three Stone Halo Round · 18K White Gold
$4,745.00
The Bess round engagement ring setting in Platinum | RockHer
The Bess Love Knot Pavé Halo Round Engagement Ring Setting in 18K White Gold
Love Knot Pavé Halo Round · 18K White Gold
$5,835.00
The Calista round engagement ring setting in Platinum | RockHer
The Calista Love Knot Halo Round Engagement Ring Setting in 18K White Gold
Love Knot Halo Round · 18K White Gold
$5,170.00
The Abbey round engagement ring setting in Platinum | RockHer
The Abbey Hidden Halo Pavé Round Engagement Ring Setting in Platinum
Hidden Halo Pavé Round · Platinum
$3,170.00
The Cappella Linear Bezel Pavé Round Engagement Ring Setting in 18K White Gold
The Cappella Linear Bezel Pavé Round Engagement Ring Setting in 18K White Gold
Linear Bezel Pavé Round · 18K White Gold
$2,890.00
The Nera Floral Split Shank Halo Round Engagement Ring Setting in 18K White Gold
The Nera Floral Split Shank Halo Round Engagement Ring Setting in 18K White Gold
Floral Split Shank Halo Round · 18K White Gold
$3,990.00
The Nedda round engagement ring setting in Platinum | RockHer
The Nedda Double Halo Round Engagement Ring Setting in 18K White Gold
Double Halo Round · 18K White Gold
$4,910.00
The Ariana round engagement ring setting in Platinum | RockHer
The Ariana Swirl Halo Round Engagement Ring Setting in 18K White Gold
Swirl Halo Round · 18K White Gold
$4,060.00
The Elettra Timeless Comfort Fit Six Prong Solitaire Round Engagement Ring Setting in 18K White Gold
The Elettra Timeless Comfort Fit Six Prong Solitaire Round Engagement Ring Setting in 18K White Gold
Timeless Comfort Fit Six Prong Solitaire Round · 18K White Gold
$1,805.00
The Elsa Timeless Comfort Fit Rounded Solitaire Round Engagement Ring Setting in 18K White Gold
The Elsa Timeless Comfort Fit Rounded Solitaire Round Engagement Ring Setting in 18K White Gold
Timeless Comfort Fit Rounded Solitaire Round · 18K White Gold
$2,145.00
The Giovanna round engagement ring setting in 18K White Gold | RockHer
The Giovanna Pinched Comfort Fit Claw Prong Solitaire Round Engagement Ring Setting in 18K White Gold
Pinched Comfort Fit Claw Prong Solitaire Round · 18K White Gold
$1,805.00
The Leonora round engagement ring setting in 18K White Gold | RockHer
The Leonora Simple Low Base Knife Edge Solitaire Round Engagement Ring Setting in 18K White Gold
Simple Low Base Knife Edge Solitaire Round · 18K White Gold
$2,145.00
The Lucia round engagement ring setting in 18K White Gold | RockHer
The Lucia Secret Gallery French Pavé Halo Round Engagement Ring Setting in 18K White Gold
Secret Gallery French Pavé Halo Round · 18K White Gold
$4,090.00
The Eartha radiant engagement ring setting in 14K Rose Gold | RockHer
The Eartha Upper Hidden Halo Solitaire Radiant Cut Engagement Ring Setting in 14K Rose Gold
Upper Hidden Halo Solitaire Radiant Cut · 14K Rose Gold
$2,050.00
The Musetta round engagement ring setting in 18K White Gold | RockHer
The Musetta Shared Prong Halo Linear Band Round Engagement Ring Setting in 18K White Gold
Shared Prong Halo Linear Band Round · 18K White Gold
$4,065.00
The Pamina round engagement ring setting in Platinum | RockHer
The Pamina Cluster Halo Round Engagement Ring Setting in 18K White Gold
Cluster Halo Round · 18K White Gold
$6,765.00
The Brenda High Hidden Halo Solitaire Round Engagement Ring Setting in Platinum
The Brenda High Hidden Halo Solitaire Round Engagement Ring Setting in Platinum
High Hidden Halo Solitaire Round · Platinum
$3,080.00
The Rosina round engagement ring setting in 18K White Gold | RockHer
The Rosina Open Intertwined Pavé Row Round Engagement Ring Setting in 18K White Gold
Open Intertwined Pavé Row Round · 18K White Gold
$6,565.00
The Brenda High Hidden Halo Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
The Brenda High Hidden Halo Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
High Hidden Halo Solitaire Emerald Cut · 18K Yellow Gold
$2,795.00
The Violetta round engagement ring setting in 18K White Gold | RockHer
The Violetta Multi Layer Interweave Pavé Round Engagement Ring Setting in 18K White Gold
Multi Layer Interweave Pavé Round · 18K White Gold
$7,110.00
The Alice round engagement ring setting in 18K White Gold | RockHer
The Alice Twisted Three Stone Round Engagement Ring Setting in 18K White Gold
Twisted Three Stone Round · 18K White Gold
$4,490.00
The Kelly asscher engagement ring setting in 18K Yellow Gold | RockHer
The Kelly Double Claw Prong French Pavé Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Double Claw Prong French Pavé Asscher Cut · 18K Yellow Gold
$2,515.00
The Kelly cushion engagement ring setting in 18K Yellow Gold | RockHer
The Kelly Double Claw Prong French Pavé Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Double Claw Prong French Pavé Cushion Cut · 18K Yellow Gold
$2,515.00
The Charlie oval engagement ring setting in 18K White Gold | RockHer
The Charlie Twisted Rope Surprise Stone Solitaire Oval Engagement Ring Setting in 18K White Gold
Twisted Rope Surprise Stone Solitaire Oval · 18K White Gold
$2,985.00
The Kelly emerald engagement ring setting in 18K Yellow Gold | RockHer
The Kelly Double Claw Prong French Pavé Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Double Claw Prong French Pavé Emerald Cut · 18K Yellow Gold
$2,515.00
The Olivia round engagement ring setting in 18K Yellow Gold | RockHer
The Olivia Pavé Round Engagement Ring Setting in 18K Yellow Gold
Pavé Round · 18K Yellow Gold
$2,985.00
The Kelly heart engagement ring setting in 18K Yellow Gold | RockHer
The Kelly Double Claw Prong French Pavé Heart Engagement Ring Setting in 18K Yellow Gold
Double Claw Prong French Pavé Heart · 18K Yellow Gold
$2,515.00
The Joni Hidden Halo Solitaire Engagement Ring Setting for Round Diamonds in Platinum | RockHer
The Joni Hidden Halo Solitaire Round Engagement Ring Setting in Platinum
Hidden Halo Solitaire Round · Platinum
$2,330.00
The Kelly Double Claw Prong French Pavé Marquise Engagement Ring Setting in 18K Yellow Gold
The Kelly Double Claw Prong French Pavé Marquise Engagement Ring Setting in 18K Yellow Gold
Double Claw Prong French Pavé Marquise · 18K Yellow Gold
$2,515.00
The Kelly oval engagement ring setting in 18K Yellow Gold | RockHer
The Kelly Double Claw Prong French Pavé Oval Engagement Ring Setting in 18K Yellow Gold
Double Claw Prong French Pavé Oval · 18K Yellow Gold
$2,515.00
The Kelly princess engagement ring setting in 18K Yellow Gold | RockHer
The Kelly Double Claw Prong French Pavé Princess Cut Engagement Ring Setting in 18K Yellow Gold
Double Claw Prong French Pavé Princess Cut · 18K Yellow Gold
$2,515.00
The Kelly pear engagement ring setting in 18K Yellow Gold | RockHer
The Kelly Double Claw Prong French Pavé Pear Engagement Ring Setting in 18K Yellow Gold
Double Claw Prong French Pavé Pear · 18K Yellow Gold
$2,515.00
The Kelly round engagement ring setting in 18K Yellow Gold | RockHer
The Kelly Double Claw Prong French Pavé Round Engagement Ring Setting in 18K Yellow Gold
Double Claw Prong French Pavé Round · 18K Yellow Gold
$2,425.00
The Norah asscher engagement ring setting in 18K Yellow Gold | RockHer
The Norah Classic Linear French Pavé Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Classic Linear French Pavé Asscher Cut · 18K Yellow Gold
$2,890.00
The Norah cushion engagement ring setting in 18K Yellow Gold | RockHer
The Norah Classic Linear French Pavé Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Classic Linear French Pavé Cushion Cut · 18K Yellow Gold
$2,890.00
The Norah heart engagement ring setting in 18K Yellow Gold | RockHer
The Norah Classic Linear French Pavé Heart Engagement Ring Setting in 18K Yellow Gold
Classic Linear French Pavé Heart · 18K Yellow Gold
$2,515.00
The Norah Classic Linear French Pavé Marquise Engagement Ring Setting in 18K Yellow Gold
The Norah Classic Linear French Pavé Marquise Engagement Ring Setting in 18K Yellow Gold
Classic Linear French Pavé Marquise · 18K Yellow Gold
$2,890.00
The Norah oval engagement ring setting in 18K Yellow Gold | RockHer
The Norah Classic Linear French Pavé Oval Engagement Ring Setting in 18K Yellow Gold
Classic Linear French Pavé Oval · 18K Yellow Gold
$2,890.00
The Norah princess engagement ring setting in 18K Yellow Gold | RockHer
The Norah Classic Linear French Pavé Princess Cut Engagement Ring Setting in 18K Yellow Gold
Classic Linear French Pavé Princess Cut · 18K Yellow Gold
$2,610.00
The Norah pear engagement ring setting in 18K Yellow Gold | RockHer
The Norah Classic Linear French Pavé Pear Engagement Ring Setting in 18K Yellow Gold
Classic Linear French Pavé Pear · 18K Yellow Gold
$2,515.00
The Norah radiant engagement ring setting in 18K Yellow Gold | RockHer
The Norah Classic Linear French Pavé Radiant Cut Engagement Ring Setting in 18K Yellow Gold
Classic Linear French Pavé Radiant Cut · 18K Yellow Gold
$2,610.00
The Norah round engagement ring setting in 18K Yellow Gold | RockHer
The Norah Classic Linear French Pavé Round Engagement Ring Setting in 18K Yellow Gold
Classic Linear French Pavé Round · 18K Yellow Gold
$2,610.00
The Taylor asscher engagement ring setting in 18K Yellow Gold | RockHer
The Taylor Pavé Halo Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Pavé Halo Asscher Cut · 18K Yellow Gold
$4,985.00
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.