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3 Carat Diamond Rings

Engagement ring settings in platinum and gold, solitaire, halo, three stone and vintage designs, made to order in our Los Angeles atelier.

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Round engagement ring setting in Platinum, Elettra Timeless Comfort Fit Six Prong Solitaire Round | RockHer

The Elettra Timeless Comfort Fit Six Prong Solitaire Round Engagement Ring Setting in Platinum

Timeless Comfort Fit Six Prong Solitaire Round · Platinum

$2,395 · Setting

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The Joni emerald engagement ring setting in 14K Rose Gold | RockHer

The Joni Hidden Halo Solitaire Emerald Cut Engagement Ring Setting in 14K Rose Gold

Hidden Halo Solitaire Emerald Cut · 14K Rose Gold

$1,865 · Setting

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The Giovanna round engagement ring setting in Platinum | RockHer

The Giovanna Pinched Comfort Fit Claw Prong Solitaire Round Engagement Ring Setting in Platinum

Pinched Comfort Fit Claw Prong Solitaire Round · Platinum

$2,325 · Setting

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The Olivia round engagement ring setting in Platinum | RockHer

The Olivia Pavé Round Engagement Ring Setting in Platinum

Pavé Round · Platinum

$3,585 · Setting

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The Floria emerald engagement ring setting in Platinum | RockHer

The Floria Comfort Fit Claw Prong Solitaire Emerald Cut Engagement Ring Setting in Platinum

Comfort Fit Claw Prong Solitaire Emerald Cut · Platinum

$2,375 · Setting

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The Olivia round engagement ring setting in Platinum | RockHer

The Olivia Pavé Round Engagement Ring Setting in 18K White Gold

Pavé Round · 18K White Gold

$3,080 · Setting

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Custom Design
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The Gladys oval engagement ring setting in 18K Yellow Gold | RockHer

The Gladys Pinched Cathedral Solitaire Oval Engagement Ring Setting in 18K Yellow Gold

Pinched Cathedral Solitaire Oval · 18K Yellow Gold

$3,080 · Setting

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The Linda round engagement ring setting in 14K Rose Gold | RockHer

The Linda Scalloped Halo Floral Leaf Round Engagement Ring Setting in 14K Rose Gold

Scalloped Halo Floral Leaf Round · 14K Rose Gold

$2,330 · Setting

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The Diana oval engagement ring setting in Platinum | RockHer

The Diana Tapered Baguette Three Stone Oval Engagement Ring Setting in Platinum

Tapered Baguette Three Stone Oval · Platinum

$2,805 · Setting

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Emerald engagement ring setting in Platinum, June Three Stone Emerald Cut | RockHer

The June Three Stone Emerald Cut Engagement Ring Setting in Platinum

Three Stone Emerald Cut · Platinum

$4,465 · Setting

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The Carole Split Shank Engagement Ring Setting for Emerald Cut Diamonds in 14K Rose Gold | RockHer

The Carole Two Row Pavé Split Shank Emerald Cut Engagement Ring Setting in 14K Rose Gold

Two Row Pavé Split Shank Emerald Cut · 14K Rose Gold

$3,615 · Setting

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Pear engagement ring setting in 14K Rose Gold, Norah Classic Linear French Pavé Pear | RockHer

The Norah Classic Linear French Pavé Pear Engagement Ring Setting in 14K Rose Gold

Classic Linear French Pavé Pear · 14K Rose Gold

$2,145 · Setting

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Round engagement ring setting in Platinum, Joni Hidden Halo Solitaire Round | RockHer

The Joni Hidden Halo Solitaire Round Engagement Ring Setting in Platinum

Hidden Halo Solitaire Round · Platinum

$2,550 · Setting

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The Tina cushion engagement ring setting in Platinum | RockHer

The Tina Triple Row Pavé Cushion Cut Engagement Ring Setting in Platinum

Triple Row Pavé Cushion Cut · Platinum

$5,040 · Setting

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ROSI™
Every diamond scored by gemological intelligence before it ships.
How ROSI™ Works
Round engagement ring setting in Platinum, Eartha Upper Hidden Halo Solitaire Round | RockHer

The Eartha Upper Hidden Halo Solitaire Round Engagement Ring Setting in Platinum

Upper Hidden Halo Solitaire Round · Platinum

$2,775 · Setting

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The Rosina Engagement Ring Setting for Round Diamonds in Platinum | RockHer

The Rosina Open Intertwined Pavé Row Round Engagement Ring Setting in Platinum

Open Intertwined Pavé Row Round · Platinum

$7,285 · Setting

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The Pamina round engagement ring setting in Platinum | RockHer

The Pamina Cluster Halo Round Engagement Ring Setting in Platinum

Cluster Halo Round · Platinum

$8,255 · Setting

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The Abbey radiant engagement ring setting in Platinum | RockHer

The Abbey Hidden Halo Pavé Radiant Cut Engagement Ring Setting in Platinum

Hidden Halo Pavé Radiant Cut · Platinum

$3,430 · Setting

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Round engagement ring setting in 18K White Gold, Dolly Double Hidden Halo Solitaire Round | RockHer

The Dolly Double Hidden Halo Solitaire Round Engagement Ring Setting in Platinum

Double Hidden Halo Solitaire Round · Platinum

$5,330 · Setting

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The Leonora round engagement ring setting in Platinum | RockHer

The Leonora Simple Low Base Knife Edge Solitaire Round Engagement Ring Setting in Platinum

Simple Low Base Knife Edge Solitaire Round · Platinum

$2,560 · Setting

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Emerald engagement ring setting in Platinum, Caroline Three Stone Emerald Cut | RockHer

The Caroline Three Stone Emerald Cut Engagement Ring Setting in Platinum

Three Stone Emerald Cut · Platinum

$4,230 · Setting

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Round engagement ring setting in Platinum, Elsa Timeless Comfort Fit Rounded Solitaire Round | RockHer

The Elsa Timeless Comfort Fit Rounded Solitaire Round Engagement Ring Setting in Platinum

Timeless Comfort Fit Rounded Solitaire Round · Platinum

$2,560 · Setting

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Emerald engagement ring setting in Platinum, Carole Two Row Pavé Split Shank Emerald Cut | RockHer

The Carole Two Row Pavé Split Shank Emerald Cut Engagement Ring Setting in Platinum

Two Row Pavé Split Shank Emerald Cut · Platinum

$5,070 · Setting

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The Ariana round engagement ring setting in Platinum | RockHer

The Ariana Swirl Halo Round Engagement Ring Setting in Platinum

Swirl Halo Round · Platinum

$5,050 · Setting

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The Norah pear engagement ring setting in 18K White Gold | RockHer

The Norah Classic Linear French Pavé Pear Engagement Ring Setting in Platinum

Classic Linear French Pavé Pear · Platinum

$3,090 · Setting

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The Nedda round engagement ring setting in Platinum | RockHer

The Nedda Double Halo Round Engagement Ring Setting in Platinum

Double Halo Round · Platinum

$5,980 · Setting

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Pear engagement ring setting in Platinum, Kelly Double Claw Prong French Pavé Pear | RockHer

The Kelly Double Claw Prong French Pavé Pear Engagement Ring Setting in Platinum

Double Claw Prong French Pavé Pear · Platinum

$3,110 · Setting

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Round engagement ring setting in Platinum, Nera Floral Split Shank Halo Round | RockHer

The Nera Floral Split Shank Halo Round Engagement Ring Setting in Platinum

Floral Split Shank Halo Round · Platinum

$4,975 · Setting

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Round engagement ring setting in Platinum, Dionne Diamond Pavé Halo Round | RockHer

The Dionne Diamond Pavé Halo Round Engagement Ring Setting in Platinum

Diamond Pavé Halo Round · Platinum

$3,090 · Setting

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Round engagement ring setting in Platinum, Cappella Linear Bezel Pavé Round | RockHer

The Cappella Linear Bezel Pavé Round Engagement Ring Setting in Platinum

Linear Bezel Pavé Round · Platinum

$3,310 · Setting

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The Calista round engagement ring setting in Platinum | RockHer

The Calista Love Knot Halo Round Engagement Ring Setting in Platinum

Love Knot Halo Round · Platinum

$6,820 · Setting

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The Bess round engagement ring setting in Platinum | RockHer

The Bess Love Knot Pavé Halo Round Engagement Ring Setting in Platinum

Love Knot Pavé Halo Round · Platinum

$6,245 · Setting

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Round engagement ring setting in 18K Yellow Gold, Caroline Three Stone Round | RockHer

The Caroline Three Stone Round Engagement Ring Setting in 18K Yellow Gold

Three Stone Round · 18K Yellow Gold

$3,450 · Setting

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Round engagement ring setting in Platinum, Anna Three Stone Halo Round | RockHer

The Anna Three Stone Halo Round Engagement Ring Setting in Platinum

Three Stone Halo Round · Platinum

$5,795 · Setting

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Cushion engagement ring setting in 18K Yellow Gold, Tori Rounded Comfort Fit Solitaire Cushion Cut | RockHer

The Tori Rounded Comfort Fit Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold

Rounded Comfort Fit Solitaire Cushion Cut · 18K Yellow Gold

$2,275 · Setting

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Round engagement ring setting in Platinum, Andrea Three Stone Halo Round | RockHer

The Andrea Three Stone Halo Round Engagement Ring Setting in Platinum

Three Stone Halo Round · Platinum

$5,270 · Setting

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Round engagement ring setting in Platinum, Elliott Hidden Halo Pavé Round | RockHer

The Elliott Hidden Halo Pavé Round Engagement Ring Setting in 18K White Gold

Hidden Halo Pavé Round · 18K White Gold

$5,830 · Setting

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The Aria round engagement ring setting in Platinum | RockHer

The Aria Channel Row Pavé Halo Round Engagement Ring Setting in Platinum

Channel Row Pavé Halo Round · Platinum

$5,870 · Setting

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The Adriana cushion engagement ring setting in 18K White Gold | RockHer

The Adriana Cathedral Pavé Halo Cushion Cut Engagement Ring Setting in 18K White Gold

Cathedral Pavé Halo Cushion Cut · 18K White Gold

$3,875 · Setting

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Round engagement ring setting in Platinum, Shania Beaded Floral Halo Leaf Shoulders Round | RockHer

The Shania Beaded Floral Halo Leaf Shoulders Round Engagement Ring Setting in Platinum

Beaded Floral Halo Leaf Shoulders Round · Platinum

$5,080 · Setting

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Oval engagement ring setting in Platinum, Dylan Petite French Pavé Halo Oval | RockHer

The Dylan Petite French Pavé Halo Oval Engagement Ring Setting in Platinum

Petite French Pavé Halo Oval · Platinum

$3,600 · Setting

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The Calypso round engagement ring setting in 18K White Gold | RockHer

The Calypso Double Halo Round Engagement Ring Setting in Platinum

Double Halo Round · Platinum

$5,105 · Setting

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Round engagement ring setting in Platinum, Dixie Double Halo Round | RockHer

The Dixie Double Halo Round Engagement Ring Setting in Platinum

Double Halo Round · Platinum

$6,090 · Setting

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Emerald engagement ring setting in 18K Yellow Gold, Brenda High Hidden Halo Solitaire Emerald Cut | RockHer

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 · Setting

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Round engagement ring setting in Platinum, Florence Vintage Scalloped Halo Round | RockHer

The Florence Vintage Scalloped Halo Round Engagement Ring Setting in Platinum

Vintage Scalloped Halo Round · Platinum

$4,550 · Setting

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Round engagement ring setting in Platinum, Brenda High Hidden Halo Solitaire Round | RockHer

The Brenda High Hidden Halo Solitaire Round Engagement Ring Setting in Platinum

High Hidden Halo Solitaire Round · Platinum

$3,305 · Setting

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The Kai round engagement ring setting in Platinum | RockHer

The Kai Scroll Gallery Halo Round Engagement Ring Setting in Platinum

Scroll Gallery Halo Round · Platinum

$3,830 · Setting

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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 · Setting

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Round engagement ring setting in 18K White Gold, Abbey Hidden Halo Pavé Round | RockHer

The Abbey Hidden Halo Pavé Round Engagement Ring Setting in Platinum

Hidden Halo Pavé Round · Platinum

$3,405 · Setting

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Oval engagement ring setting in 18K White Gold, Abbey Hidden Halo Pavé Oval | RockHer

The Abbey Hidden Halo Pavé Oval Engagement Ring Setting in 18K White Gold

Hidden Halo Pavé Oval · 18K White Gold

$3,170 · Setting

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Oval engagement ring setting in 18K Yellow Gold, Dolly Double Hidden Halo Solitaire Oval | RockHer

The Dolly Double Hidden Halo Solitaire Oval Engagement Ring Setting in 18K Yellow Gold

Double Hidden Halo Solitaire Oval · 18K Yellow Gold

$3,545 · Setting

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Round engagement ring setting in Platinum, Blondie Double Hidden Halo Solitaire Round | RockHer

The Blondie Double Hidden Halo Solitaire Round Engagement Ring Setting in Platinum

Double Hidden Halo Solitaire Round · Platinum

$4,080 · Setting

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Round engagement ring setting in 18K White Gold, Cyndi Curved Hidden Halo Solitaire Round | 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 · Setting

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Oval engagement ring setting in Platinum, Joni Hidden Halo Solitaire Oval | RockHer

The Joni Hidden Halo Solitaire Oval Engagement Ring Setting in Platinum

Hidden Halo Solitaire Oval · Platinum

$2,560 · Setting

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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

$2,800 · Setting

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Round engagement ring setting in 18K Yellow Gold, Dolly Double Hidden Halo Solitaire Round | RockHer

The Dolly Double Hidden Halo Solitaire Round Engagement Ring Setting in 18K Yellow Gold

Double Hidden Halo Solitaire Round · 18K Yellow Gold

$3,640 · Setting

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Emerald engagement ring setting in 18K White Gold, Brenda High Hidden Halo Solitaire Emerald Cut | 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 · Setting

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The Spring East West Eight Claw Comfort Fit Solitaire Round Engagement Ring Setting in Platinum

The Spring East West Eight Claw Comfort Fit Solitaire Round Engagement Ring Setting in Platinum

East West Eight Claw Comfort Fit Solitaire Round · Platinum

$3,035 · Setting

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The Rosanna asscher engagement ring setting in Platinum | RockHer

The Rosanna Cathedral Surprise Stone Solitaire Asscher Cut Engagement Ring Setting in Platinum

Cathedral Surprise Stone Solitaire Asscher Cut · Platinum

$3,825 · Setting

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Princess engagement ring setting in Platinum, Rio Scroll Gallery Comfort Fit Solitaire Princess Cut | RockHer

The Rio Scroll Gallery Comfort Fit Solitaire Princess Cut Engagement Ring Setting in Platinum

Scroll Gallery Comfort Fit Solitaire Princess Cut · Platinum

$2,905 · Setting

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Engagement Rings Made to Order in Los Angeles

3 carat diamond engagement rings, made to order in our Los Angeles atelier. Every setting is crafted in solid gold or platinum and paired with a GIA or IGI certified diamond scored by ROSI™, gemological intelligence built by our gemologists. One fair price, a 40 day return window on eligible pieces, one complimentary resize within 60 days of delivery, up to 1.5 sizes (U.S.), and a lifetime warranty against manufacturing defects.

Good to Know

Engagement Ring Questions

Is the price for the complete ring or the setting?
Made to order settings are priced without the center diamond. You choose that separately, with our gemologists and ROSI™ guiding you to the strongest stone for your budget. Select Collection rings are complete, setting and center diamond together, at one price.
How long until my ring arrives?
Every made to order ring is crafted in our Los Angeles atelier in 8 to 12 business days, then shipped fully insured with a signature required at delivery.
Can I see a setting with a different diamond shape?
Most settings accommodate several center shapes. Open any ring and choose your shape in the configurator, or speak with our gemologist and we will confirm what works for the design you love.
What if it isn't right?
Returns are accepted within 40 days of your order date on unworn pieces in original condition. Engraved or personalized pieces, custom-contoured wedding bands and fully custom designs are final sale once production begins, and resized pieces cannot be returned. One complimentary resize within 60 days of delivery, up to 1.5 sizes (U.S.); some designs, such as full-pavé eternity bands, cannot be resized. Every ring carries a lifetime warranty against manufacturing defects.
Speak with a Gemologist

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 · (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.