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 Gladys cushion engagement ring setting in Platinum | RockHer
The Gladys Pinched Cathedral Solitaire Cushion Cut Engagement Ring Setting in 18K White Gold
Pinched Cathedral Solitaire Cushion Cut · 18K White Gold
$3,170.00
The Gladys asscher engagement ring setting in 18K White Gold | RockHer
The Gladys Pinched Cathedral Solitaire Asscher Cut Engagement Ring Setting in 18K White Gold
Pinched Cathedral Solitaire Asscher Cut · 18K White Gold
$3,170.00
The Tori round engagement ring setting in Platinum | RockHer
The Tori Rounded Comfort Fit Solitaire Round Engagement Ring Setting in 18K White Gold
Rounded Comfort Fit Solitaire Round · 18K White Gold
$2,145.00
The Tori radiant engagement ring setting in Platinum | RockHer
The Tori Rounded Comfort Fit Solitaire Radiant Cut Engagement Ring Setting in 18K White Gold
Rounded Comfort Fit Solitaire Radiant Cut · 18K White Gold
$2,145.00
The Tori pear engagement ring setting in Platinum | RockHer
The Tori Rounded Comfort Fit Solitaire Pear Engagement Ring Setting in 18K White Gold
Rounded Comfort Fit Solitaire Pear · 18K White Gold
$2,145.00
The Tori princess engagement ring setting in 18K White Gold | RockHer
The Tori Rounded Comfort Fit Solitaire Princess Cut Engagement Ring Setting in 18K White Gold
Rounded Comfort Fit Solitaire Princess Cut · 18K White Gold
$2,145.00
The Tori oval engagement ring setting in Platinum | RockHer
The Tori Rounded Comfort Fit Solitaire Oval Engagement Ring Setting in 18K White Gold
Rounded Comfort Fit Solitaire Oval · 18K White Gold
$2,145.00
The Tori marquise engagement ring setting in Platinum | RockHer
The Tori Rounded Comfort Fit Solitaire Marquise Engagement Ring Setting in 18K White Gold
Rounded Comfort Fit Solitaire Marquise · 18K White Gold
$2,145.00
The Tori heart engagement ring setting in 18K White Gold | RockHer
The Tori Rounded Comfort Fit Solitaire Heart Engagement Ring Setting in 18K White Gold
Rounded Comfort Fit Solitaire Heart · 18K White Gold
$2,145.00
The Tori emerald engagement ring setting in Platinum | RockHer
The Tori Rounded Comfort Fit Solitaire Emerald Cut Engagement Ring Setting in 18K White Gold
Rounded Comfort Fit Solitaire Emerald Cut · 18K White Gold
$2,145.00
The Tori cushion engagement ring setting in Platinum | RockHer
The Tori Rounded Comfort Fit Solitaire Cushion Cut Engagement Ring Setting in 18K White Gold
Rounded Comfort Fit Solitaire Cushion Cut · 18K White Gold
$2,145.00
The Tori asscher engagement ring setting in 18K White Gold | RockHer
The Tori Rounded Comfort Fit Solitaire Asscher Cut Engagement Ring Setting in 18K White Gold
Rounded Comfort Fit Solitaire Asscher Cut · 18K White Gold
$2,145.00
Cathedral Squared Edge Solitaire styling on The Charlotte round engagement ring setting | RockHer
The Charlotte Cathedral Squared Edge Solitaire Round Engagement Ring Setting in 18K White Gold
Cathedral Squared Edge Solitaire Round · 18K White Gold
$3,765.00
The Charlotte radiant engagement ring setting in 18K White Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Radiant Cut Engagement Ring Setting in 18K White Gold
Cathedral Squared Edge Solitaire Radiant Cut · 18K White Gold
$3,800.00
The Charlotte pear engagement ring setting in 18K White Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Pear Engagement Ring Setting in 18K White Gold
Cathedral Squared Edge Solitaire Pear · 18K White Gold
$3,800.00
The Charlotte princess engagement ring setting in 18K White Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Princess Cut Engagement Ring Setting in 18K White Gold
Cathedral Squared Edge Solitaire Princess Cut · 18K White Gold
$3,800.00
The Charlotte oval engagement ring setting in Platinum | RockHer
The Charlotte Cathedral Squared Edge Solitaire Oval Engagement Ring Setting in 18K White Gold
Cathedral Squared Edge Solitaire Oval · 18K White Gold
$3,800.00
The Charlotte marquise engagement ring setting in 18K White Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Marquise Engagement Ring Setting in 18K White Gold
Cathedral Squared Edge Solitaire Marquise · 18K White Gold
$3,800.00
The Charlotte heart engagement ring setting in 18K White Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Heart Engagement Ring Setting in 18K White Gold
Cathedral Squared Edge Solitaire Heart · 18K White Gold
$3,800.00
The Charlotte emerald engagement ring setting in Platinum | RockHer
The Charlotte Cathedral Squared Edge Solitaire Emerald Cut Engagement Ring Setting in 18K White Gold
Cathedral Squared Edge Solitaire Emerald Cut · 18K White Gold
$3,800.00
The Charlotte cushion engagement ring setting in Platinum | RockHer
The Charlotte Cathedral Squared Edge Solitaire Cushion Cut Engagement Ring Setting in 18K White Gold
Cathedral Squared Edge Solitaire Cushion Cut · 18K White Gold
$3,800.00
The Charlotte asscher engagement ring setting in 18K White Gold | RockHer
The Charlotte Cathedral Squared Edge Solitaire Asscher Cut Engagement Ring Setting in 18K White Gold
Cathedral Squared Edge Solitaire Asscher Cut · 18K White Gold
$3,800.00
The Talea round engagement ring setting in 18K White Gold | RockHer
The Talea Hand Engraved Milgrain Halo Round Engagement Ring Setting in 18K White Gold
Hand Engraved Milgrain Halo Round · 18K White Gold
$4,465.00
The Talea princess engagement ring setting in 18K White Gold | RockHer
The Talea Hand Engraved Milgrain Halo Princess Cut Engagement Ring Setting in 18K White Gold
Hand Engraved Milgrain Halo Princess Cut · 18K White Gold
$4,595.00
The Talea cushion engagement ring setting in 18K White Gold | RockHer
The Talea Hand Engraved Milgrain Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Hand Engraved Milgrain Halo Cushion Cut · 18K White Gold
$4,495.00
The Roberta round engagement ring setting in Platinum | RockHer
The Roberta Vintage Leaf Pattern Solitaire Round Engagement Ring Setting in 18K White Gold
Vintage Leaf Pattern Solitaire Round · 18K White Gold
$2,890.00
The Roberta radiant engagement ring setting in Platinum | RockHer
The Roberta Vintage Leaf Pattern Solitaire Radiant Cut Engagement Ring Setting in 18K White Gold
Vintage Leaf Pattern Solitaire Radiant Cut · 18K White Gold
$2,890.00
The Roberta pear engagement ring setting in Platinum | RockHer
The Roberta Vintage Leaf Pattern Solitaire Pear Engagement Ring Setting in 18K White Gold
Vintage Leaf Pattern Solitaire Pear · 18K White Gold
$2,890.00
The Roberta princess engagement ring setting in 18K White Gold | RockHer
The Roberta Vintage Leaf Pattern Solitaire Princess Cut Engagement Ring Setting in 18K White Gold
Vintage Leaf Pattern Solitaire Princess Cut · 18K White Gold
$2,890.00
The Roberta oval engagement ring setting in Platinum | RockHer
The Roberta Vintage Leaf Pattern Solitaire Oval Engagement Ring Setting in 18K White Gold
Vintage Leaf Pattern Solitaire Oval · 18K White Gold
$2,890.00
The Roberta marquise engagement ring setting in Platinum | RockHer
The Roberta Vintage Leaf Pattern Solitaire Marquise Engagement Ring Setting in 18K White Gold
Vintage Leaf Pattern Solitaire Marquise · 18K White Gold
$2,890.00
The Roberta heart engagement ring setting in 18K White Gold | RockHer
The Roberta Vintage Leaf Pattern Solitaire Heart Engagement Ring Setting in 18K White Gold
Vintage Leaf Pattern Solitaire Heart · 18K White Gold
$2,890.00
The Roberta emerald engagement ring setting in Platinum | RockHer
The Roberta Vintage Leaf Pattern Solitaire Emerald Cut Engagement Ring Setting in 18K White Gold
Vintage Leaf Pattern Solitaire Emerald Cut · 18K White Gold
$2,890.00
The Roberta cushion engagement ring setting in Platinum | RockHer
The Roberta Vintage Leaf Pattern Solitaire Cushion Cut Engagement Ring Setting in 18K White Gold
Vintage Leaf Pattern Solitaire Cushion Cut · 18K White Gold
$2,890.00
The Roberta asscher engagement ring setting in 18K White Gold | RockHer
The Roberta Vintage Leaf Pattern Solitaire Asscher Cut Engagement Ring Setting in 18K White Gold
Vintage Leaf Pattern Solitaire Asscher Cut · 18K White Gold
$2,890.00
The Jennifer round engagement ring setting in Platinum | RockHer
The Jennifer Delicate Three Stone Halo Round Engagement Ring Setting in 18K White Gold
Delicate Three Stone Halo Round · 18K White Gold
$4,815.00
The Jennifer princess engagement ring setting in 18K White Gold | RockHer
The Jennifer Delicate Three Stone Halo Princess Cut Engagement Ring Setting in 18K White Gold
Delicate Three Stone Halo Princess Cut · 18K White Gold
$4,850.00
The Anita round engagement ring setting in Platinum | RockHer
The Anita Classic Three Stone Round Engagement Ring Setting in 18K White Gold
Classic Three Stone Round · 18K White Gold
$3,825.00
The Anita radiant engagement ring setting in Platinum | RockHer
The Anita Classic Three Stone Radiant Cut Engagement Ring Setting in 18K White Gold
Classic Three Stone Radiant Cut · 18K White Gold
$3,825.00
The Anita pear engagement ring setting in Platinum | RockHer
The Anita Classic Three Stone Pear Engagement Ring Setting in 18K White Gold
Classic Three Stone Pear · 18K White Gold
$3,825.00
The Anita princess engagement ring setting in 18K White Gold | RockHer
The Anita Classic Three Stone Princess Cut Engagement Ring Setting in 18K White Gold
Classic Three Stone Princess Cut · 18K White Gold
$3,825.00
The Anita oval engagement ring setting in Platinum | RockHer
The Anita Classic Three Stone Oval Engagement Ring Setting in 18K White Gold
Classic Three Stone Oval · 18K White Gold
$3,825.00
The Anita marquise engagement ring setting in Platinum | RockHer
The Anita Classic Three Stone Marquise Engagement Ring Setting in 18K White Gold
Classic Three Stone Marquise · 18K White Gold
$3,825.00
The Anita heart engagement ring setting in 18K White Gold | RockHer
The Anita Classic Three Stone Heart Engagement Ring Setting in 18K White Gold
Classic Three Stone Heart · 18K White Gold
$3,825.00
The Anita cushion engagement ring setting in Platinum | RockHer
The Anita Classic Three Stone Cushion Cut Engagement Ring Setting in 18K White Gold
Classic Three Stone Cushion Cut · 18K White Gold
$3,825.00
The June round engagement ring setting in 18K White Gold | RockHer
The June Three Stone Round Engagement Ring Setting in 18K White Gold
Three Stone Round · 18K White Gold
$3,825.00
The June princess engagement ring setting in 18K White Gold | RockHer
The June Three Stone Princess Cut Engagement Ring Setting in 18K White Gold
Three Stone Princess Cut · 18K White Gold
$3,920.00
The Ottava princess engagement ring setting in 18K White Gold | RockHer
The Ottava Bypass Pavé Twist Princess Cut Engagement Ring Setting in 18K White Gold
Bypass Pavé Twist Princess Cut · 18K White Gold
$4,135.00
The Ottava oval engagement ring setting in 18K White Gold | RockHer
The Ottava Bypass Pavé Twist Oval Engagement Ring Setting in 18K White Gold
Bypass Pavé Twist Oval · 18K White Gold
$4,135.00
The Ottava cushion engagement ring setting in 18K White Gold | RockHer
The Ottava Bypass Pavé Twist Cushion Cut Engagement Ring Setting in 18K White Gold
Bypass Pavé Twist Cushion Cut · 18K White Gold
$4,135.00
The Michelle round engagement ring setting in 18K White Gold | RockHer
The Michelle Double Halo Round Engagement Ring Setting in 18K White Gold
Double Halo Round · 18K White Gold
$5,190.00
The Michelle princess engagement ring setting in 18K White Gold | RockHer
The Michelle Double Halo Princess Cut Engagement Ring Setting in 18K White Gold
Double Halo Princess Cut · 18K White Gold
$5,225.00
The Michelle cushion engagement ring setting in 18K White Gold | RockHer
The Michelle Double Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Double Halo Cushion Cut · 18K White Gold
$5,225.00
The Tallis round engagement ring setting in 18K White Gold | RockHer
The Tallis Split Shank Pavé Halo Round Engagement Ring Setting in 18K White Gold
Split Shank Pavé Halo Round · 18K White Gold
$4,760.00
The Nicki princess engagement ring setting in 18K White Gold | RockHer
The Nicki Split Shank Pavé Halo Princess Cut Engagement Ring Setting in 18K White Gold
Split Shank Pavé Halo Princess Cut · 18K White Gold
$4,865.00
The Melisma round engagement ring setting in 18K White Gold | RockHer
The Melisma Open Twisted Triple Halo Round Engagement Ring Setting in 18K White Gold
Open Twisted Triple Halo Round · 18K White Gold
$5,860.00
The Melisma princess engagement ring setting in 18K White Gold | RockHer
The Melisma Open Twisted Triple Halo Princess Cut Engagement Ring Setting in 18K White Gold
Open Twisted Triple Halo Princess Cut · 18K White Gold
$5,785.00
The Melisma cushion engagement ring setting in 18K White Gold | RockHer
The Melisma Open Twisted Triple Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Open Twisted Triple Halo Cushion Cut · 18K White Gold
$5,785.00
The Medley round engagement ring setting in 18K White Gold | RockHer
The Medley Double Halo Round Engagement Ring Setting in 18K White Gold
Double Halo Round · 18K White Gold
$5,390.00
The Medley cushion engagement ring setting in 18K White Gold | RockHer
The Medley Double Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Double Halo Cushion Cut · 18K White Gold
$5,375.00
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

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.