Home 3 Carat Diamond Rings

3 Carat Diamond Rings

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

The Nina round engagement ring setting in 18K White Gold | RockHer
The Nina Classic Linear Halo Round Engagement Ring Setting in 18K White Gold
Classic Linear Halo Round · 18K White Gold
$3,360.00
The Nina cushion engagement ring setting in 18K White Gold | RockHer
The Nina Classic Linear Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Classic Linear Halo Cushion Cut · 18K White Gold
$3,450.00
The Marcia round engagement ring setting in 18K White Gold | RockHer
The Marcia Bezel Halo Channel Band Round Engagement Ring Setting in 18K White Gold
Bezel Halo Channel Band Round · 18K White Gold
$3,915.00
The Marcia oval engagement ring setting in 18K White Gold | RockHer
The Marcia Bezel Halo Channel Band Oval Engagement Ring Setting in 18K White Gold
Bezel Halo Channel Band Oval · 18K White Gold
$3,950.00
The Marcia cushion engagement ring setting in Platinum | RockHer
The Marcia Bezel Halo Channel Band Cushion Cut Engagement Ring Setting in 18K White Gold
Bezel Halo Channel Band Cushion Cut · 18K White Gold
$3,915.00
The Anita asscher engagement ring setting in 18K White Gold | RockHer
The Anita Classic Three Stone Asscher Cut Engagement Ring Setting in 18K White Gold
Classic Three Stone Asscher Cut · 18K White Gold
$3,825.00
The June radiant engagement ring setting in 18K White Gold | RockHer
The June Three Stone Radiant Cut Engagement Ring Setting in 18K White Gold
Three Stone Radiant Cut · 18K White Gold
$3,920.00
The June oval engagement ring setting in 18K White Gold | RockHer
The June Three Stone Oval Engagement Ring Setting in 18K White Gold
Three Stone Oval · 18K White Gold
$3,920.00
The June marquise engagement ring setting in 18K White Gold | RockHer
The June Three Stone Marquise Engagement Ring Setting in 18K White Gold
Three Stone Marquise · 18K White Gold
$3,920.00
The June heart engagement ring setting in 18K White Gold | RockHer
The June Three Stone Heart Engagement Ring Setting in 18K White Gold
Three Stone Heart · 18K White Gold
$3,920.00
The June cushion engagement ring setting in 18K White Gold | RockHer
The June Three Stone Cushion Cut Engagement Ring Setting in 18K White Gold
Three Stone Cushion Cut · 18K White Gold
$3,920.00
The June asscher engagement ring setting in Platinum | RockHer
The June Three Stone Asscher Cut Engagement Ring Setting in 18K White Gold
Three Stone Asscher Cut · 18K White Gold
$3,920.00
The Ottava round engagement ring setting in 18K White Gold | RockHer
The Ottava Bypass Pavé Twist Round Engagement Ring Setting in 18K White Gold
Bypass Pavé Twist Round · 18K White Gold
$4,095.00
The Carrie round engagement ring setting in 18K White Gold | RockHer
The Carrie Pavé Round Engagement Ring Setting in 18K White Gold
Pavé Round · 18K White Gold
$2,515.00
The Carrie radiant engagement ring setting in 18K White Gold | RockHer
The Carrie Pavé Radiant Cut Engagement Ring Setting in 18K White Gold
Pavé Radiant Cut · 18K White Gold
$2,515.00
The Carrie princess engagement ring setting in 18K White Gold | RockHer
The Carrie Pavé Princess Cut Engagement Ring Setting in 18K White Gold
Pavé Princess Cut · 18K White Gold
$2,515.00
The Carrie oval engagement ring setting in 18K White Gold | RockHer
The Carrie Pavé Oval Engagement Ring Setting in 18K White Gold
Pavé Oval · 18K White Gold
$2,515.00
The Carrie emerald engagement ring setting in 18K White Gold | RockHer
The Carrie Pavé Emerald Cut Engagement Ring Setting in 18K White Gold
Pavé Emerald Cut · 18K White Gold
$2,515.00
The Carrie cushion engagement ring setting in 18K White Gold | RockHer
The Carrie Pavé Cushion Cut Engagement Ring Setting in 18K White Gold
Pavé Cushion Cut · 18K White Gold
$2,515.00
The Carrie asscher engagement ring setting in 18K White Gold | RockHer
The Carrie Pavé Asscher Cut Engagement Ring Setting in 18K White Gold
Pavé Asscher Cut · 18K White Gold
$2,515.00
The Demi round engagement ring setting in 18K White Gold | RockHer
The Demi Delicate Split Shank Pavé Round Engagement Ring Setting in 18K White Gold
Delicate Split Shank Pavé Round · 18K White Gold
$3,080.00
The Demi princess engagement ring setting in 18K White Gold | RockHer
The Demi Delicate Split Shank Pavé Princess Cut Engagement Ring Setting in 18K White Gold
Delicate Split Shank Pavé Princess Cut · 18K White Gold
$3,170.00
The Demi cushion engagement ring setting in 18K White Gold | RockHer
The Demi Delicate Split Shank Pavé Cushion Cut Engagement Ring Setting in 18K White Gold
Delicate Split Shank Pavé Cushion Cut · 18K White Gold
$3,170.00
The Celesta round engagement ring setting in 18K White Gold | RockHer
The Celesta Channel Set Pavé Round Engagement Ring Setting in 18K White Gold
Channel Set Pavé Round · 18K White Gold
$4,105.00
The Celesta cushion engagement ring setting in Platinum | RockHer
The Celesta Channel Set Pavé Cushion Cut Engagement Ring Setting in 18K White Gold
Channel Set Pavé Cushion Cut · 18K White Gold
$4,105.00
The Avery round engagement ring setting in Platinum | RockHer
The Avery Channel Pavé Three Stone Round Engagement Ring Setting in 18K White Gold
Channel Pavé Three Stone Round · 18K White Gold
$5,415.00
The Avery princess engagement ring setting in 18K White Gold | RockHer
The Avery Channel Pavé Three Stone Princess Cut Engagement Ring Setting in 18K White Gold
Channel Pavé Three Stone Princess Cut · 18K White Gold
$5,485.00
The Natalie round engagement ring setting in Platinum | RockHer
The Natalie Classic Three Stone Round Engagement Ring Setting in 18K White Gold
Classic Three Stone Round · 18K White Gold
$5,045.00
The Natalie princess engagement ring setting in 18K White Gold | RockHer
The Natalie Classic Three Stone Princess Cut Engagement Ring Setting in 18K White Gold
Classic Three Stone Princess Cut · 18K White Gold
$5,065.00
The Betty round engagement ring setting in 18K White Gold | RockHer
The Betty Double Halo Round Engagement Ring Setting in 18K White Gold
Double Halo Round · 18K White Gold
$5,800.00
The Betty radiant engagement ring setting in Platinum | RockHer
The Betty Double Halo Radiant Cut Engagement Ring Setting in 18K White Gold
Double Halo Radiant Cut · 18K White Gold
$5,920.00
The Betty cushion engagement ring setting in 18K White Gold | RockHer
The Betty Double Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Double Halo Cushion Cut · 18K White Gold
$5,835.00
The Alicia round engagement ring setting in 18K White Gold | RockHer
The Alicia Shared Prong Halo Round Engagement Ring Setting in 18K White Gold
Shared Prong Halo Round · 18K White Gold
$4,000.00
The Alicia emerald engagement ring setting in 18K White Gold | RockHer
The Alicia Shared Prong Halo Emerald Cut Engagement Ring Setting in 18K White Gold
Shared Prong Halo Emerald Cut · 18K White Gold
$4,070.00
The Sonata round engagement ring setting in Platinum | RockHer
The Sonata Graduated Shank Pavé Halo Round Engagement Ring Setting in 18K White Gold
Graduated Shank Pavé Halo Round · 18K White Gold
$3,825.00
The Sonata princess engagement ring setting in Platinum | RockHer
The Sonata Graduated Shank Pavé Halo Princess Cut Engagement Ring Setting in 18K White Gold
Graduated Shank Pavé Halo Princess Cut · 18K White Gold
$3,825.00
The Sonata cushion engagement ring setting in Platinum | RockHer
The Sonata Graduated Shank Pavé Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Graduated Shank Pavé Halo Cushion Cut · 18K White Gold
$3,825.00
The Hayley round engagement ring setting in Platinum | RockHer
The Hayley Bezel Cathedral Solitaire Round Engagement Ring Setting in 18K White Gold
Bezel Cathedral Solitaire Round · 18K White Gold
$2,425.00
The Hayley radiant engagement ring setting in 18K White Gold | RockHer
The Hayley Bezel Cathedral Solitaire Radiant Cut Engagement Ring Setting in 18K White Gold
Bezel Cathedral Solitaire Radiant Cut · 18K White Gold
$2,425.00
The Hayley pear engagement ring setting in 18K White Gold | RockHer
The Hayley Bezel Cathedral Solitaire Pear Engagement Ring Setting in 18K White Gold
Bezel Cathedral Solitaire Pear · 18K White Gold
$2,425.00
The Hayley princess engagement ring setting in 18K White Gold | RockHer
The Hayley Bezel Cathedral Solitaire Princess Cut Engagement Ring Setting in 18K White Gold
Bezel Cathedral Solitaire Princess Cut · 18K White Gold
$2,425.00
The Hayley oval engagement ring setting in Platinum | RockHer
The Hayley Bezel Cathedral Solitaire Oval Engagement Ring Setting in 18K White Gold
Bezel Cathedral Solitaire Oval · 18K White Gold
$2,425.00
The Hayley marquise engagement ring setting in 18K White Gold | RockHer
The Hayley Bezel Cathedral Solitaire Marquise Engagement Ring Setting in 18K White Gold
Bezel Cathedral Solitaire Marquise · 18K White Gold
$2,425.00
The Hayley heart engagement ring setting in 18K White Gold | RockHer
The Hayley Bezel Cathedral Solitaire Heart Engagement Ring Setting in 18K White Gold
Bezel Cathedral Solitaire Heart · 18K White Gold
$2,425.00
The Hayley emerald engagement ring setting in 18K White Gold | RockHer
The Hayley Bezel Cathedral Solitaire Emerald Cut Engagement Ring Setting in 18K White Gold
Bezel Cathedral Solitaire Emerald Cut · 18K White Gold
$2,425.00
The Hayley cushion engagement ring setting in Platinum | RockHer
The Hayley Bezel Cathedral Solitaire Cushion Cut Engagement Ring Setting in 18K White Gold
Bezel Cathedral Solitaire Cushion Cut · 18K White Gold
$2,425.00
The Hayley asscher engagement ring setting in 18K White Gold | RockHer
The Hayley Bezel Cathedral Solitaire Asscher Cut Engagement Ring Setting in 18K White Gold
Bezel Cathedral Solitaire Asscher Cut · 18K White Gold
$2,425.00
The Cadence round engagement ring setting in 18K White Gold | RockHer
The Cadence Double Halo Round Engagement Ring Setting in 18K White Gold
Double Halo Round · 18K White Gold
$4,925.00
Double Halo Cut styling on The Cadence cushion engagement ring setting | RockHer
The Cadence Double Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Double Halo Cushion Cut · 18K White Gold
$4,885.00
The Eddie round engagement ring setting in 18K White Gold | RockHer
The Eddie Modern French Pavé Halo Round Engagement Ring Setting in 18K White Gold
Modern French Pavé Halo Round · 18K White Gold
$4,060.00
The Eddie cushion engagement ring setting in 18K White Gold | RockHer
The Eddie Modern French Pavé Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Modern French Pavé Halo Cushion Cut · 18K White Gold
$4,025.00
The Arietta round engagement ring setting in Platinum | RockHer
The Arietta Double Halo Round Engagement Ring Setting in 18K White Gold
Double Halo Round · 18K White Gold
$6,110.00
The Arietta cushion engagement ring setting in 18K White Gold | RockHer
The Arietta Double Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Double Halo Cushion Cut · 18K White Gold
$6,000.00
The Allegra round engagement ring setting in Platinum | RockHer
The Allegra Shared Prong Pavé Halo Round Engagement Ring Setting in 18K White Gold
Shared Prong Pavé Halo Round · 18K White Gold
$3,765.00
The Allegra princess engagement ring setting in Platinum | RockHer
The Allegra Shared Prong Pavé Halo Princess Cut Engagement Ring Setting in 18K White Gold
Shared Prong Pavé Halo Princess Cut · 18K White Gold
$3,830.00
The Cosette round engagement ring setting in 18K White Gold | RockHer
The Cosette Pavé Halo Round Engagement Ring Setting in 18K White Gold
Pavé Halo Round · 18K White Gold
$3,080.00
The Cosette cushion engagement ring setting in Platinum | RockHer
The Cosette Pavé Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Pavé Halo Cushion Cut · 18K White Gold
$3,545.00
The Bianca cushion engagement ring setting in Platinum | RockHer
The Bianca Classic Prong Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Classic Prong Halo Cushion Cut · 18K White Gold
$3,545.00
The Annie round engagement ring setting in Platinum | RockHer
The Annie Halo Round Engagement Ring Setting in 18K White Gold
Halo Round · 18K White Gold
$6,030.00
The Annie radiant engagement ring setting in Platinum | RockHer
The Annie Halo Radiant Cut Engagement Ring Setting in 18K White Gold
Halo Radiant Cut · 18K White Gold
$6,140.00
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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Engagement Rings
Engagement Rings
Made to order in Los Angeles
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Wedding Bands
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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

Book a Consultation

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.