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 Veronica radiant engagement ring setting in 18K Yellow Gold | RockHer
The Veronica Hand Engraved Scroll Vintage Solitaire Radiant Cut Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Scroll Vintage Solitaire Radiant Cut · 18K Yellow Gold
$2,890.00
The Veronica round engagement ring setting in 18K Yellow Gold | RockHer
The Veronica Hand Engraved Scroll Vintage Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Scroll Vintage Solitaire Round · 18K Yellow Gold
$2,795.00
The Sade emerald engagement ring setting in 18K Yellow Gold | RockHer
The Sade Classic French Pavé Halo Linear Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Classic French Pavé Halo Linear Emerald Cut · 18K Yellow Gold
$3,535.00
The Sade marquise engagement ring setting in 18K Yellow Gold | RockHer
The Sade Classic French Pavé Halo Linear Marquise Engagement Ring Setting in 18K Yellow Gold
Classic French Pavé Halo Linear Marquise · 18K Yellow Gold
$3,625.00
The Sade Pavé Halo Engagement Ring Setting for Oval Diamonds in 18K Yellow Gold | RockHer
The Sade Classic French Pavé Halo Linear Oval Engagement Ring Setting in 18K Yellow Gold
Classic French Pavé Halo Linear Oval · 18K Yellow Gold
$3,535.00
The Sade pear engagement ring setting in 18K Yellow Gold | RockHer
The Sade Classic French Pavé Halo Linear Pear Engagement Ring Setting in 18K Yellow Gold
Classic French Pavé Halo Linear Pear · 18K Yellow Gold
$3,535.00
The Sade round engagement ring setting in 18K Yellow Gold | RockHer
The Sade Classic French Pavé Halo Linear Round Engagement Ring Setting in 18K Yellow Gold
Classic French Pavé Halo Linear Round · 18K Yellow Gold
$3,450.00
The Fiona emerald engagement ring setting in 18K Yellow Gold | RockHer
The Fiona Shared Prong Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Shared Prong Halo Emerald Cut · 18K Yellow Gold
$3,795.00
The Fiona marquise engagement ring setting in 18K Yellow Gold | RockHer
The Fiona Shared Prong Halo Marquise Engagement Ring Setting in 18K Yellow Gold
Shared Prong Halo Marquise · 18K Yellow Gold
$3,870.00
The Fiona oval engagement ring setting in 18K Yellow Gold | RockHer
The Fiona Shared Prong Halo Oval Engagement Ring Setting in 18K Yellow Gold
Shared Prong Halo Oval · 18K Yellow Gold
$3,795.00
The Fiona Shared Prong Halo Pear Engagement Ring Setting in 18K Yellow Gold
The Fiona Shared Prong Halo Pear Engagement Ring Setting in 18K Yellow Gold
Shared Prong Halo Pear · 18K Yellow Gold
$3,835.00
The Fiona round engagement ring setting in 18K Yellow Gold | RockHer
The Fiona Shared Prong Halo Round Engagement Ring Setting in 18K Yellow Gold
Shared Prong Halo Round · 18K Yellow Gold
$3,760.00
The Celine Two Row Pavé Split Shank Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
The Celine Two Row Pavé Split Shank Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Two Row Pavé Split Shank Halo Emerald Cut · 18K Yellow Gold
$4,990.00
The Celine oval engagement ring setting in 18K Yellow Gold | RockHer
The Celine Two Row Pavé Split Shank Halo Oval Engagement Ring Setting in 18K Yellow Gold
Two Row Pavé Split Shank Halo Oval · 18K Yellow Gold
$4,990.00
The Celine pear engagement ring setting in 18K Yellow Gold | RockHer
The Celine Two Row Pavé Split Shank Halo Pear Engagement Ring Setting in 18K Yellow Gold
Two Row Pavé Split Shank Halo Pear · 18K Yellow Gold
$5,095.00
The Celine round engagement ring setting in 18K Yellow Gold | RockHer
The Celine Two Row Pavé Split Shank Halo Round Engagement Ring Setting in 18K Yellow Gold
Two Row Pavé Split Shank Halo Round · 18K Yellow Gold
$4,950.00
The Lira French Pavé Split Shank Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
The Lira French Pavé Split Shank Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
French Pavé Split Shank Halo Emerald Cut · 18K Yellow Gold
$4,735.00
The Lira oval engagement ring setting in 18K Yellow Gold | RockHer
The Lira French Pavé Split Shank Halo Oval Engagement Ring Setting in 18K Yellow Gold
French Pavé Split Shank Halo Oval · 18K Yellow Gold
$4,735.00
The Lira pear engagement ring setting in 18K Yellow Gold | RockHer
The Lira French Pavé Split Shank Halo Pear Engagement Ring Setting in 18K Yellow Gold
French Pavé Split Shank Halo Pear · 18K Yellow Gold
$4,735.00
The Lira round engagement ring setting in 18K Yellow Gold | RockHer
The Lira French Pavé Split Shank Halo Round Engagement Ring Setting in 18K Yellow Gold
French Pavé Split Shank Halo Round · 18K Yellow Gold
$4,700.00
The Calliope Petite Split Shank Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
The Calliope Petite Split Shank Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Petite Split Shank Halo Emerald Cut · 18K Yellow Gold
$4,065.00
The Calliope oval engagement ring setting in 18K Yellow Gold | RockHer
The Calliope Petite Split Shank Halo Oval Engagement Ring Setting in 18K Yellow Gold
Petite Split Shank Halo Oval · 18K Yellow Gold
$4,110.00
The Calliope pear engagement ring setting in 18K Yellow Gold | RockHer
The Calliope Petite Split Shank Halo Pear Engagement Ring Setting in 18K Yellow Gold
Petite Split Shank Halo Pear · 18K Yellow Gold
$4,065.00
The Calliope round engagement ring setting in 18K Yellow Gold | RockHer
The Calliope Petite Split Shank Halo Round Engagement Ring Setting in 18K Yellow Gold
Petite Split Shank Halo Round · 18K Yellow Gold
$4,025.00
The Britney emerald engagement ring setting in 18K Yellow Gold | RockHer
The Britney Double Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Double Halo Emerald Cut · 18K Yellow Gold
$4,470.00
The Britney Scalloped Pavé Halo Engagement Ring Setting for Oval Diamonds in 18K Yellow Gold | RockHer
The Britney Double Halo Oval Engagement Ring Setting in 18K Yellow Gold
Double Halo Oval · 18K Yellow Gold
$4,545.00
The Britney pear engagement ring setting in 18K Yellow Gold | RockHer
The Britney Double Halo Pear Engagement Ring Setting in 18K Yellow Gold
Double Halo Pear · 18K Yellow Gold
$4,785.00
The Britney round engagement ring setting in 18K Yellow Gold | RockHer
The Britney Double Halo Round Engagement Ring Setting in 18K Yellow Gold
Double Halo Round · 18K Yellow Gold
$4,725.00
The Lyra princess engagement ring setting in 18K Yellow Gold | RockHer
The Lyra Double Halo Princess Cut Engagement Ring Setting in 18K Yellow Gold
Double Halo Princess Cut · 18K Yellow Gold
$6,380.00
The Lyra round engagement ring setting in 18K Yellow Gold | RockHer
The Lyra Double Halo Round Engagement Ring Setting in 18K Yellow Gold
Double Halo Round · 18K Yellow Gold
$6,340.00
The Mariah emerald engagement ring setting in 18K Yellow Gold | RockHer
The Mariah Three Tier Halo Crown Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Three Tier Halo Crown Emerald Cut · 18K Yellow Gold
$6,210.00
The Mariah Pavé Halo Engagement Ring Setting for Oval Diamonds in 18K Yellow Gold | RockHer
The Mariah Three Tier Halo Crown Oval Engagement Ring Setting in 18K Yellow Gold
Three Tier Halo Crown Oval · 18K Yellow Gold
$6,185.00
The Mariah pear engagement ring setting in 18K Yellow Gold | RockHer
The Mariah Three Tier Halo Crown Pear Engagement Ring Setting in 18K Yellow Gold
Three Tier Halo Crown Pear · 18K Yellow Gold
$6,245.00
The Mariah round engagement ring setting in 18K Yellow Gold | RockHer
The Mariah Three Tier Halo Crown Round Engagement Ring Setting in 18K Yellow Gold
Three Tier Halo Crown Round · 18K Yellow Gold
$6,085.00
The Melody Twisted Pavé Halo Engagement Ring Setting for Oval Diamonds in 18K Yellow Gold | RockHer
The Melody Twisted Lattice Halo Oval Engagement Ring Setting in 18K Yellow Gold
Twisted Lattice Halo Oval · 18K Yellow Gold
$5,170.00
The Melody pear engagement ring setting in 18K Yellow Gold | RockHer
The Melody Twisted Lattice Halo Pear Engagement Ring Setting in 18K Yellow Gold
Twisted Lattice Halo Pear · 18K Yellow Gold
$5,200.00
The Melody round engagement ring setting in 18K Yellow Gold | RockHer
The Melody Twisted Lattice Halo Round Engagement Ring Setting in 18K Yellow Gold
Twisted Lattice Halo Round · 18K Yellow Gold
$5,130.00
The Harmony emerald engagement ring setting in 18K Yellow Gold | RockHer
The Harmony Twisted Vine Halo Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Twisted Vine Halo Emerald Cut · 18K Yellow Gold
$3,825.00
The Harmony oval engagement ring setting in 18K Yellow Gold | RockHer
The Harmony Twisted Vine Halo Oval Engagement Ring Setting in 18K Yellow Gold
Twisted Vine Halo Oval · 18K Yellow Gold
$3,825.00
The Harmony pear engagement ring setting in 18K Yellow Gold | RockHer
The Harmony Twisted Vine Halo Pear Engagement Ring Setting in 18K Yellow Gold
Twisted Vine Halo Pear · 18K Yellow Gold
$3,850.00
The Adriana cushion engagement ring setting in 18K Yellow Gold | RockHer
The Adriana Cathedral Pavé Halo Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Cathedral Pavé Halo Cushion Cut · 18K Yellow Gold
$3,800.00
The Adriana round engagement ring setting in 18K Yellow Gold | RockHer
The Adriana Cathedral Pavé Halo Round Engagement Ring Setting in 18K Yellow Gold
Cathedral Pavé Halo Round · 18K Yellow Gold
$3,865.00
The Aida asscher engagement ring setting in 18K Yellow Gold | RockHer
The Aida Hand Engraved Vintage Cathedral Solitaire Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Vintage Cathedral Solitaire Asscher Cut · 18K Yellow Gold
$3,360.00
The Aida cushion engagement ring setting in 18K Yellow Gold | RockHer
The Aida Hand Engraved Vintage Cathedral Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Vintage Cathedral Solitaire Cushion Cut · 18K Yellow Gold
$3,360.00
The Aida emerald engagement ring setting in 18K Yellow Gold | RockHer
The Aida Hand Engraved Vintage Cathedral Solitaire Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Vintage Cathedral Solitaire Emerald Cut · 18K Yellow Gold
$3,360.00
The Aida heart engagement ring setting in 18K Yellow Gold | RockHer
The Aida Hand Engraved Vintage Cathedral Solitaire Heart Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Vintage Cathedral Solitaire Heart · 18K Yellow Gold
$3,360.00
The Aida marquise engagement ring setting in 18K Yellow Gold | RockHer
The Aida Hand Engraved Vintage Cathedral Solitaire Marquise Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Vintage Cathedral Solitaire Marquise · 18K Yellow Gold
$3,360.00
The Aida oval engagement ring setting in 18K Yellow Gold | RockHer
The Aida Hand Engraved Vintage Cathedral Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Vintage Cathedral Solitaire Oval · 18K Yellow Gold
$3,360.00
The Aida princess engagement ring setting in 18K Yellow Gold | RockHer
The Aida Hand Engraved Vintage Cathedral Solitaire Princess Cut Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Vintage Cathedral Solitaire Princess Cut · 18K Yellow Gold
$3,360.00
The Aida pear engagement ring setting in 18K Yellow Gold | RockHer
The Aida Hand Engraved Vintage Cathedral Solitaire Pear Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Vintage Cathedral Solitaire Pear · 18K Yellow Gold
$3,360.00
The Aida radiant engagement ring setting in 18K Yellow Gold | RockHer
The Aida Hand Engraved Vintage Cathedral Solitaire Radiant Cut Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Vintage Cathedral Solitaire Radiant Cut · 18K Yellow Gold
$3,360.00
The Aida round engagement ring setting in 18K Yellow Gold | RockHer
The Aida Hand Engraved Vintage Cathedral Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Hand Engraved Vintage Cathedral Solitaire Round · 18K Yellow Gold
$3,360.00
The Angelica asscher engagement ring setting in 18K Yellow Gold | RockHer
The Angelica Three Stone Matched Asscher Cut Engagement Ring Setting in 18K Yellow Gold
Three Stone Matched Asscher Cut · 18K Yellow Gold
$7,205.00
The Angelica cushion engagement ring setting in 18K Yellow Gold | RockHer
The Angelica Three Stone Matched Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Three Stone Matched Cushion Cut · 18K Yellow Gold
$7,205.00
The Angelica emerald engagement ring setting in 18K Yellow Gold | RockHer
The Angelica Three Stone Matched Emerald Cut Engagement Ring Setting in 18K Yellow Gold
Three Stone Matched Emerald Cut · 18K Yellow Gold
$7,205.00
The Angelica heart engagement ring setting in 18K Yellow Gold | RockHer
The Angelica Three Stone Matched Heart Engagement Ring Setting in 18K Yellow Gold
Three Stone Matched Heart · 18K Yellow Gold
$7,205.00
The Angelica marquise engagement ring setting in 18K Yellow Gold | RockHer
The Angelica Three Stone Matched Marquise Engagement Ring Setting in 18K Yellow Gold
Three Stone Matched Marquise · 18K Yellow Gold
$7,205.00
The Angelica Three Stone Engagement Ring Setting for Oval Diamonds in 18K Yellow Gold | RockHer
The Angelica Three Stone Matched Oval Engagement Ring Setting in 18K Yellow Gold
Three Stone Matched Oval · 18K Yellow Gold
$7,205.00
The Angelica princess engagement ring setting in 18K Yellow Gold | RockHer
The Angelica Three Stone Matched Princess Cut Engagement Ring Setting in 18K Yellow Gold
Three Stone Matched Princess Cut · 18K Yellow Gold
$7,205.00
The Angelica pear engagement ring setting in 18K Yellow Gold | RockHer
The Angelica Three Stone Matched Pear Engagement Ring Setting in 18K Yellow Gold
Three Stone Matched Pear · 18K Yellow Gold
$7,205.00
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.