Home 3 Carat Diamond Rings

3 Carat Diamond Rings

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

European Cut, Contemporary Comfort Fit Flat Shank Solitaire Emerald, in Platinum, prong setting | RockHer
The Viola Contemporary Comfort Fit Flat Shank Solitaire Emerald Cut Engagement Ring Setting in Platinum
Contemporary Comfort Fit Flat Shank Solitaire Emerald Cut · Platinum
$2,425.00
Contemporary Comfort Fit Flat Shank Solitaire Cushion, in Platinum, prong setting | RockHer
The Viola Contemporary Comfort Fit Flat Shank Solitaire Cushion Cut Engagement Ring Setting in Platinum
Contemporary Comfort Fit Flat Shank Solitaire Cushion Cut · Platinum
$2,425.00
The Gladys Pinched Cathedral Solitaire Round Engagement Ring Setting in Platinum
The Gladys Pinched Cathedral Solitaire Round Engagement Ring Setting in Platinum
Pinched Cathedral Solitaire Round · Platinum
$3,545.00
Pinched Cathedral Solitaire Radiant, in Platinum, prong setting | RockHer
The Gladys Pinched Cathedral Solitaire Radiant Cut Engagement Ring Setting in Platinum
Pinched Cathedral Solitaire Radiant Cut · Platinum
$3,615.00
Pinched Cathedral Solitaire Pear Shape, in Platinum, prong setting | RockHer
The Gladys Pinched Cathedral Solitaire Pear Engagement Ring Setting in Platinum
Pinched Cathedral Solitaire Pear · Platinum
$3,615.00
Pinched Cathedral Solitaire Princess, in Platinum, prong setting | RockHer
The Gladys Pinched Cathedral Solitaire Princess Cut Engagement Ring Setting in Platinum
Pinched Cathedral Solitaire Princess Cut · Platinum
$3,615.00
Pinched Cathedral Solitaire Marquise, in Platinum, prong setting | RockHer
The Gladys Pinched Cathedral Solitaire Marquise Engagement Ring Setting in Platinum
Pinched Cathedral Solitaire Marquise · Platinum
$3,615.00
Pinched Cathedral Solitaire Heart Shape, in Platinum, prong setting | RockHer
The Gladys Pinched Cathedral Solitaire Heart Engagement Ring Setting in Platinum
Pinched Cathedral Solitaire Heart · Platinum
$3,615.00
The Gladys Pinched Cathedral Solitaire Cushion Cut Engagement Ring Setting in Platinum
The Gladys Pinched Cathedral Solitaire Cushion Cut Engagement Ring Setting in Platinum
Pinched Cathedral Solitaire Cushion Cut · Platinum
$3,615.00
Delicate Split Shank Pavé Cushion, in Platinum, pave setting | RockHer
The Demi Delicate Split Shank Pavé Cushion Cut Engagement Ring Setting in Platinum
Delicate Split Shank Pavé Cushion Cut · Platinum
$3,265.00
Round Brilliant, Channel Set Pavé, in Platinum, pave setting | RockHer
The Celesta Channel Set Pavé Round Engagement Ring Setting in Platinum
Channel Set Pavé Round · Platinum
$4,400.00
Channel Set Pavé Princess, in Platinum, pave setting | RockHer
The Celesta Channel Set Pavé Princess Cut Engagement Ring Setting in Platinum
Channel Set Pavé Princess Cut · Platinum
$4,400.00
The Celesta Channel Set Pavé Cushion Cut Engagement Ring Setting in Platinum
The Celesta Channel Set Pavé Cushion Cut Engagement Ring Setting in Platinum
Channel Set Pavé Cushion Cut · Platinum
$4,400.00
The Avery Channel Pavé Three Stone Round Engagement Ring Setting in Platinum
The Avery Channel Pavé Three Stone Round Engagement Ring Setting in Platinum
Channel Pavé Three Stone Round · Platinum
$5,615.00
Round Brilliant, Classic Three Stone Round, in Platinum, pave setting – front view | RockHer
The Natalie Classic Three Stone Round Engagement Ring Setting in Platinum
Classic Three Stone Round · Platinum
$5,235.00
Classic Three Stone Princess, in Platinum, pave setting | RockHer
The Natalie Classic Three Stone Princess Cut Engagement Ring Setting in Platinum
Classic Three Stone Princess Cut · Platinum
$5,305.00
Round Brilliant, Double Halo Split Shank, in Platinum, prong setting | RockHer
The Betty Double Halo Round Engagement Ring Setting in Platinum
Double Halo Round · Platinum
$6,120.00
Double Halo Split Shank Radiant, in Platinum, prong setting – front view | RockHer
The Betty Double Halo Radiant Cut Engagement Ring Setting in Platinum
Double Halo Radiant Cut · Platinum
$6,245.00
Double Halo Split Shank Cushion, in Platinum, prong setting | RockHer
The Betty Double Halo Cushion Cut Engagement Ring Setting in Platinum
Double Halo Cushion Cut · Platinum
$6,155.00
Round Brilliant, Shared Prong Halo Round, in Platinum, pave setting | RockHer
The Alicia Shared Prong Halo Round Engagement Ring Setting in Platinum
Shared Prong Halo Round · Platinum
$4,190.00
European Cut, Shared Prong Halo Emerald, in Platinum, pave setting | RockHer
The Alicia Shared Prong Halo Emerald Cut Engagement Ring Setting in Platinum
Shared Prong Halo Emerald Cut · Platinum
$4,270.00
The Sonata Graduated Shank Pavé Halo Round Engagement Ring Setting in Platinum
The Sonata Graduated Shank Pavé Halo Round Engagement Ring Setting in Platinum
Graduated Shank Pavé Halo Round · Platinum
$3,975.00
The Sonata Graduated Shank Pavé Halo Princess Cut Engagement Ring Setting in Platinum
The Sonata Graduated Shank Pavé Halo Princess Cut Engagement Ring Setting in Platinum
Graduated Shank Pavé Halo Princess Cut · Platinum
$4,010.00
The Sonata Graduated Shank Pavé Halo Cushion Cut Engagement Ring Setting in Platinum
The Sonata Graduated Shank Pavé Halo Cushion Cut Engagement Ring Setting in Platinum
Graduated Shank Pavé Halo Cushion Cut · Platinum
$3,975.00
The Hayley Bezel Cathedral Solitaire Round Engagement Ring Setting in Platinum
The Hayley Bezel Cathedral Solitaire Round Engagement Ring Setting in Platinum
Bezel Cathedral Solitaire Round · Platinum
$2,515.00
Bezel Cathedral Solitaire Radiant, in Platinum | RockHer
The Hayley Bezel Cathedral Solitaire Radiant Cut Engagement Ring Setting in Platinum
Bezel Cathedral Solitaire Radiant Cut · Platinum
$2,515.00
Bezel Cathedral Solitaire Princess, in Platinum | RockHer
The Hayley Bezel Cathedral Solitaire Princess Cut Engagement Ring Setting in Platinum
Bezel Cathedral Solitaire Princess Cut · Platinum
$2,515.00
The Hayley Bezel Cathedral Solitaire Oval Engagement Ring Setting in Platinum
The Hayley Bezel Cathedral Solitaire Oval Engagement Ring Setting in Platinum
Bezel Cathedral Solitaire Oval · Platinum
$2,515.00
Bezel Cathedral Solitaire Marquise, in Platinum | RockHer
The Hayley Bezel Cathedral Solitaire Marquise Engagement Ring Setting in Platinum
Bezel Cathedral Solitaire Marquise · Platinum
$2,515.00
Bezel Cathedral Solitaire Heart Shape, in Platinum | RockHer
The Hayley Bezel Cathedral Solitaire Heart Engagement Ring Setting in Platinum
Bezel Cathedral Solitaire Heart · Platinum
$2,515.00
European Cut, Bezel Cathedral Solitaire Emerald, in Platinum | RockHer
The Hayley Bezel Cathedral Solitaire Emerald Cut Engagement Ring Setting in Platinum
Bezel Cathedral Solitaire Emerald Cut · Platinum
$2,515.00
The Hayley Bezel Cathedral Solitaire Cushion Cut Engagement Ring Setting in Platinum
The Hayley Bezel Cathedral Solitaire Cushion Cut Engagement Ring Setting in Platinum
Bezel Cathedral Solitaire Cushion Cut · Platinum
$2,515.00
Bezel Cathedral Solitaire Asscher, in Platinum | RockHer
The Hayley Bezel Cathedral Solitaire Asscher Cut Engagement Ring Setting in Platinum
Bezel Cathedral Solitaire Asscher Cut · Platinum
$2,515.00
Round Brilliant, Double Halo Scalloped Pavé, in Platinum, pave setting | RockHer
The Cadence Double Halo Round Engagement Ring Setting in Platinum
Double Halo Round · Platinum
$4,600.00
Double Halo Scalloped Pavé Cushion, in Platinum, pave setting – side profile | RockHer
The Cadence Double Halo Cushion Cut Engagement Ring Setting in Platinum
Double Halo Cushion Cut · Platinum
$4,600.00
Round Brilliant, Modern French Pavé Halo, in Platinum, pave setting | RockHer
The Eddie Modern French Pavé Halo Round Engagement Ring Setting in Platinum
Modern French Pavé Halo Round · Platinum
$4,475.00
Modern French Pavé Halo Cushion, in Platinum, pave setting | RockHer
The Eddie Modern French Pavé Halo Cushion Cut Engagement Ring Setting in Platinum
Modern French Pavé Halo Cushion Cut · Platinum
$4,435.00
Round Brilliant, Double Halo Sunburst, in Platinum, pave setting – angled view | RockHer
The Arietta Double Halo Round Engagement Ring Setting in Platinum
Double Halo Round · Platinum
$6,475.00
Double Halo Sunburst Cushion, in Platinum, pave setting | RockHer
The Arietta Double Halo Cushion Cut Engagement Ring Setting in Platinum
Double Halo Cushion Cut · Platinum
$6,335.00
The Allegra Shared Prong Pavé Halo Round Engagement Ring Setting in Platinum
The Allegra Shared Prong Pavé Halo Round Engagement Ring Setting in Platinum
Shared Prong Pavé Halo Round · Platinum
$3,915.00
Shared Prong Pavé Halo Princess, in Platinum, pave setting – angled view | RockHer
The Allegra Shared Prong Pavé Halo Princess Cut Engagement Ring Setting in Platinum
Shared Prong Pavé Halo Princess Cut · Platinum
$3,370.00
The Cosette Pavé Halo Round Engagement Ring Setting in Platinum
The Cosette Pavé Halo Round Engagement Ring Setting in Platinum
Pavé Halo Round · Platinum
$3,265.00
The Cosette Pavé Halo Cushion Cut Engagement Ring Setting in Platinum
The Cosette Pavé Halo Cushion Cut Engagement Ring Setting in Platinum
Pavé Halo Cushion Cut · Platinum
$3,745.00
Round Brilliant, Classic Prong Halo, in Platinum, pave setting – front view | RockHer
The Bianca Classic Prong Halo Round Engagement Ring Setting in Platinum
Classic Prong Halo Round · Platinum
$3,050.00
The Bianca Classic Prong Halo Cushion Cut Engagement Ring Setting in Platinum
The Bianca Classic Prong Halo Cushion Cut Engagement Ring Setting in Platinum
Classic Prong Halo Cushion Cut · Platinum
$3,745.00
The Annie Halo Round Engagement Ring Setting in Platinum
The Annie Halo Round Engagement Ring Setting in Platinum
Halo Round · Platinum
$6,425.00
The Annie Halo Radiant Cut Engagement Ring Setting in Platinum
The Annie Halo Radiant Cut Engagement Ring Setting in Platinum
Halo Radiant Cut · Platinum
$6,540.00
European Cut, Ribbon Twist Pavé Halo Emerald, in Platinum, pave setting – front view | RockHer
The Annie Halo Emerald Cut Engagement Ring Setting in Platinum
Halo Emerald Cut · Platinum
$6,465.00
Round Brilliant, Pavé Swirl Halo, in Platinum, pave setting | RockHer
The Adelaide Pavé Swirl Halo Round Engagement Ring Setting in Platinum
Pavé Swirl Halo Round · Platinum
$5,175.00
Pavé Swirl Halo Oval, in Platinum, pave setting | RockHer
The Adelaide Pavé Swirl Halo Oval Engagement Ring Setting in Platinum
Pavé Swirl Halo Oval · Platinum
$5,245.00
The Angelica Three Stone Matched Round Engagement Ring Setting in Platinum
The Angelica Three Stone Matched Round Engagement Ring Setting in Platinum
Three Stone Matched Round · Platinum
$7,395.00
The Angelica Three Stone Matched Radiant Cut Engagement Ring Setting in Platinum
The Angelica Three Stone Matched Radiant Cut Engagement Ring Setting in Platinum
Three Stone Matched Radiant Cut · Platinum
$7,435.00
The Angelica Three Stone Matched Pear Engagement Ring Setting in Platinum
The Angelica Three Stone Matched Pear Engagement Ring Setting in Platinum
Three Stone Matched Pear · Platinum
$7,435.00
Three Stone Matched Shape Princess, in Platinum, prong setting | RockHer
The Angelica Three Stone Matched Princess Cut Engagement Ring Setting in Platinum
Three Stone Matched Princess Cut · Platinum
$7,435.00
The Angelica Three Stone Matched Oval Engagement Ring Setting in Platinum
The Angelica Three Stone Matched Oval Engagement Ring Setting in Platinum
Three Stone Matched Oval · Platinum
$7,435.00
Three Stone Matched Shape Marquise, in Platinum, prong setting – angled view | RockHer
The Angelica Three Stone Matched Marquise Engagement Ring Setting in Platinum
Three Stone Matched Marquise · Platinum
$7,435.00
Three Stone Matched Shape Heart Shape, in Platinum, prong setting | RockHer
The Angelica Three Stone Matched Heart Engagement Ring Setting in Platinum
Three Stone Matched Heart · Platinum
$7,435.00
The Angelica Three Stone Matched Emerald Cut Engagement Ring Setting in Platinum
The Angelica Three Stone Matched Emerald Cut Engagement Ring Setting in Platinum
Three Stone Matched Emerald Cut · Platinum
$7,435.00
The Angelica Three Stone Engagement Ring Setting for Cushion Diamonds in Platinum | RockHer
The Angelica Three Stone Matched Cushion Cut Engagement Ring Setting in Platinum
Three Stone Matched Cushion Cut · Platinum
$7,435.00
Three Stone Matched Shape Asscher, in Platinum, prong setting | RockHer
The Angelica Three Stone Matched Asscher Cut Engagement Ring Setting in Platinum
Three Stone Matched Asscher Cut · Platinum
$7,435.00
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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Show-Stopping Brilliance: Explore 3 Carat Diamond Rings

Make a lasting impression with our breathtaking collection of 3 carat diamond rings. Known for their impressive size and dazzling sparkle, these rings are perfect for those who want to celebrate love with a bold and luxurious statement piece. Whether for engagements, anniversaries, or special occasions, a 3 carat diamond ring symbolizes grandeur and timeless elegance.

Why Choose 3 Carat Diamond Rings?

A 3 carat diamond ring offers an eye-catching size combined with exceptional brilliance. Its larger carat weight means the diamond commands attention, yet with the right cut and setting, it remains elegant and wearable.

Popular Styles Featuring 3 Carat Diamonds:

  • Solitaire Rings: Classic and timeless, showcasing the diamond's natural beauty
  • Halo Settings: Surround the center diamond with smaller stones for extra sparkle
  • Three-Stone Designs: Symbolize your journey with complementary side stones
  • Vintage-Inspired Rings: Featuring intricate detailing and romantic flair
  • Modern Minimalist Bands: Sleek, understated settings that highlight the diamond

Customization Options:
  • Diamond Cuts: Round brilliant, princess, cushion, emerald, and more
  • Metal Types: 14k or 18k yellow, white, rose gold, and platinum
  • Settings: Prong, bezel, pave, and tension for style and security
  • Certification: GIA or IGI certified diamonds to guarantee quality and authenticity

Expert Tip:
Prioritize the diamond’s cut to maximize sparkle and brilliance, especially for larger stones. Consider protective settings such as bezels or halos to safeguard your investment.

Our 3 carat diamond rings collection combines grandeur and expert craftsmanship, perfect for celebrating your most memorable moments with unmatched brilliance.