Home 3 Carat Diamond Rings

3 Carat Diamond Rings

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

Round Brilliant, Timeless Comfort Fit Six Prong Solitaire, in Platinum | RockHer
The Elettra Timeless Comfort Fit Six Prong Solitaire Round Engagement Ring Setting in Platinum
Timeless Comfort Fit Six Prong Solitaire Round · Platinum
$2,140.00
The Joni Hidden Halo Solitaire Emerald Cut Engagement Ring Setting in 14K Rose Gold
The Joni Hidden Halo Solitaire Emerald Cut Engagement Ring Setting in 14K Rose Gold
Hidden Halo Solitaire Emerald Cut · 14K Rose Gold
$1,865.00
Round Brilliant, Pinched Comfort Fit Claw Prong Solitaire, 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
$2,140.00
Round Brilliant, Classic Shared Prong Linear Pavé, in Platinum – angled view | RockHer
The Olivia Pavé Round Engagement Ring Setting in Platinum
Pavé Round · Platinum
$3,200.00
European Cut, Round Comfort Fit Claw Prong Solitaire Emerald, in Platinum – angled view | RockHer
The Floria Comfort Fit Claw Prong Solitaire Emerald Cut Engagement Ring Setting in Platinum
Comfort Fit Claw Prong Solitaire Emerald Cut · Platinum
$2,140.00
Round Brilliant, Classic Shared Prong Linear Pavé, in Platinum – angled view | RockHer
The Olivia Pavé Round Engagement Ring Setting in 18K White Gold
Pavé Round · 18K White Gold
$3,080.00
The Gladys Pinched Cathedral Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
The Gladys Pinched Cathedral Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
Pinched Cathedral Solitaire Oval · 18K Yellow Gold
$3,080.00
Round Brilliant, Scalloped Halo Floral Leaf, in 14K Rose Gold, pave setting – angled view | RockHer
The Linda Scalloped Halo Floral Leaf Round Engagement Ring Setting in 14K Rose Gold
Scalloped Halo Floral Leaf Round · 14K Rose Gold
$2,330.00
Baguette and Round Side Stone Oval, in Platinum – side profile | RockHer
The Diana Tapered Baguette Three Stone Oval Engagement Ring Setting in Platinum
Tapered Baguette Three Stone Oval · Platinum
$2,610.00
European Cut, Tapered Baguette Three Stone Emerald, in Platinum, channel setting – angled view | RockHer
The June Three Stone Emerald Cut Engagement Ring Setting in Platinum
Three Stone Emerald Cut · Platinum
$4,105.00
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
$3,615.00
Classic Linear French Pavé Pear Shape, in 14K Rose Gold – angled view | RockHer
The Norah Classic Linear French Pavé Pear Engagement Ring Setting in 14K Rose Gold
Classic Linear French Pavé Pear · 14K Rose Gold
$2,145.00
The Joni Hidden Halo Solitaire Engagement Ring Setting for Round Diamonds in Platinum | RockHer
The Joni Hidden Halo Solitaire Round Engagement Ring Setting in Platinum
Hidden Halo Solitaire Round · Platinum
$2,330.00
The Tina Triple Row Pavé Cushion Cut Engagement Ring Setting in Platinum
The Tina Triple Row Pavé Cushion Cut Engagement Ring Setting in Platinum
Triple Row Pavé Cushion Cut · Platinum
$4,370.00
The Eartha Hidden Halo Solitaire Engagement Ring Setting for Round Diamonds in Platinum | RockHer
The Eartha Upper Hidden Halo Solitaire Round Engagement Ring Setting in Platinum
Upper Hidden Halo Solitaire Round · Platinum
$2,515.00
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
$7,110.00
Round Brilliant, Modern Blossom Cluster, in Platinum – angled view | RockHer
The Pamina Cluster Halo Round Engagement Ring Setting in Platinum
Cluster Halo Round · Platinum
$7,220.00
The Abbey Hidden Halo Pavé Radiant Cut Engagement Ring Setting in Platinum
The Abbey Hidden Halo Pavé Radiant Cut Engagement Ring Setting in Platinum
Hidden Halo Pavé Radiant Cut · Platinum
$3,170.00
The Dolly Hidden Halo Solitaire Engagement Ring Setting for Round Diamonds in Platinum | RockHer
The Dolly Double Hidden Halo Solitaire Round Engagement Ring Setting in Platinum
Double Hidden Halo Solitaire Round · Platinum
$5,270.00
Round Brilliant, Simple Low Base Knife Edge Solitaire, in Platinum, prong setting | RockHer
The Leonora Simple Low Base Knife Edge Solitaire Round Engagement Ring Setting in Platinum
Simple Low Base Knife Edge Solitaire Round · Platinum
$2,330.00
European Cut, Tapered Baguette Three Stone Emerald, in Platinum – front view | RockHer
The Caroline Three Stone Emerald Cut Engagement Ring Setting in Platinum
Three Stone Emerald Cut · Platinum
$3,920.00
Round Brilliant, Timeless Comfort Fit Rounded Solitaire, in Platinum, prong setting | RockHer
The Elsa Timeless Comfort Fit Rounded Solitaire Round Engagement Ring Setting in Platinum
Timeless Comfort Fit Rounded Solitaire Round · Platinum
$2,330.00
European Cut, Two Row Pavé Split Shank Emerald, in Platinum – angled view | RockHer
The Carole Two Row Pavé Split Shank Emerald Cut Engagement Ring Setting in Platinum
Two Row Pavé Split Shank Emerald Cut · Platinum
$4,390.00
Round Brilliant, Swirl Twist Pavé Halo, in Platinum, pave setting – angled view | RockHer
The Ariana Swirl Halo Round Engagement Ring Setting in Platinum
Swirl Halo Round · Platinum
$4,375.00
The Norah Engagement Ring Setting for Pear Diamonds in Platinum | RockHer
The Norah Classic Linear French Pavé Pear Engagement Ring Setting in Platinum
Classic Linear French Pavé Pear · Platinum
$2,795.00
Round Brilliant, Double Halo Split Shank Pavé, in Platinum, pave setting – angled view | RockHer
The Nedda Double Halo Round Engagement Ring Setting in Platinum
Double Halo Round · Platinum
$5,030.00
Double Claw Prong French Pavé Pear Shape, in Platinum | RockHer
The Kelly Double Claw Prong French Pavé Pear Engagement Ring Setting in Platinum
Double Claw Prong French Pavé Pear · Platinum
$2,890.00
Round Brilliant, Floral Split Shank Halo, in Platinum, prong setting – front view | RockHer
The Nera Floral Split Shank Halo Round Engagement Ring Setting in Platinum
Floral Split Shank Halo Round · Platinum
$4,325.00
Round Brilliant, Diamond Pavé Halo, in Platinum, pave setting – angled view | RockHer
The Dionne Diamond Pavé Halo Round Engagement Ring Setting in Platinum
Diamond Pavé Halo Round · Platinum
$2,795.00
Round Brilliant, Linear Bezel Pavé, in Platinum – angled view | RockHer
The Cappella Linear Bezel Pavé Round Engagement Ring Setting in Platinum
Linear Bezel Pavé Round · Platinum
$3,080.00
Round Brilliant, Love Knot Halo, in Platinum, pave setting – angled view | RockHer
The Calista Love Knot Halo Round Engagement Ring Setting in Platinum
Love Knot Halo Round · Platinum
$5,565.00
Round Brilliant, Love Knot Pavé Halo, in Platinum, pave setting – angled view | RockHer
The Bess Love Knot Pavé Halo Round Engagement Ring Setting in Platinum
Love Knot Pavé Halo Round · Platinum
$6,230.00
Round Brilliant, Tapered Baguette Three Stone Round, in 18K Yellow Gold | RockHer
The Caroline Three Stone Round Engagement Ring Setting in 18K Yellow Gold
Three Stone Round · 18K Yellow Gold
$3,450.00
Round Brilliant, French Pavé Three Stone, in Platinum, prong setting – angled view | RockHer
The Anna Three Stone Halo Round Engagement Ring Setting in Platinum
Three Stone Halo Round · Platinum
$4,925.00
The Tori Rounded Comfort Fit Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold
The Tori Rounded Comfort Fit Solitaire Cushion Cut Engagement Ring Setting in 18K Yellow Gold
Rounded Comfort Fit Solitaire Cushion Cut · 18K Yellow Gold
$2,050.00
Round Brilliant, Three Stone Halo, in Platinum, pave setting – angled view | RockHer
The Andrea Three Stone Halo Round Engagement Ring Setting in Platinum
Three Stone Halo Round · Platinum
$5,225.00
Round Brilliant, Secret Halo French Pavé Solitaire, in Platinum – angled view | RockHer
The Elliott Hidden Halo Pavé Round Engagement Ring Setting in 18K White Gold
Hidden Halo Pavé Round · 18K White Gold
$5,830.00
Round Brilliant, Channel Row Pavé Halo, in Platinum, prong setting – front view | RockHer
The Aria Channel Row Pavé Halo Round Engagement Ring Setting in Platinum
Channel Row Pavé Halo Round · Platinum
$4,925.00
Cathedral Pavé Halo Cushion, in 18K White Gold, pave setting | RockHer
The Adriana Cathedral Pavé Halo Cushion Cut Engagement Ring Setting in 18K White Gold
Cathedral Pavé Halo Cushion Cut · 18K White Gold
$3,875.00
Round Brilliant, Beaded Floral Halo Leaf Shoulders, in Platinum, pave setting – angled view | RockHer
The Shania Beaded Floral Halo Leaf Shoulders Round Engagement Ring Setting in Platinum
Beaded Floral Halo Leaf Shoulders Round · Platinum
$4,400.00
The Dylan Petite French Pavé Halo Oval Engagement Ring Setting in Platinum
The Dylan Petite French Pavé Halo Oval Engagement Ring Setting in Platinum
Petite French Pavé Halo Oval · Platinum
$3,360.00
The Calypso Pavé Halo Engagement Ring Setting for Round Diamonds in Platinum | RockHer
The Calypso Double Halo Round Engagement Ring Setting in Platinum
Double Halo Round · Platinum
$5,105.00
Round Brilliant, Double Halo French Pavé, in Platinum, pave setting – front view | RockHer
The Dixie Double Halo Round Engagement Ring Setting in Platinum
Double Halo Round · Platinum
$5,775.00
The Brenda Hidden Halo Solitaire Engagement Ring Setting for Emerald Cut Diamonds in 18K Yellow Gold | 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
$2,795.00
The Florence Vintage Scalloped Halo Round Engagement Ring Setting in Platinum
The Florence Vintage Scalloped Halo Round Engagement Ring Setting in Platinum
Vintage Scalloped Halo Round · Platinum
$4,040.00
The Brenda Hidden Halo Solitaire Engagement Ring Setting for Round Diamonds in Platinum | RockHer
The Brenda High Hidden Halo Solitaire Round Engagement Ring Setting in Platinum
High Hidden Halo Solitaire Round · Platinum
$3,080.00
Round Brilliant, Scroll Gallery Halo, in Platinum, pave setting – angled view | RockHer
The Kai Scroll Gallery Halo Round Engagement Ring Setting in Platinum
Scroll Gallery Halo Round · Platinum
$3,545.00
The Eartha Upper Hidden Halo Solitaire Radiant Cut Engagement Ring Setting in 14K Rose Gold
The Eartha Upper Hidden Halo Solitaire Radiant Cut Engagement Ring Setting in 14K Rose Gold
Upper Hidden Halo Solitaire Radiant Cut · 14K Rose Gold
$2,050.00
The Abbey Hidden Halo Solitaire Engagement Ring Setting for Round Diamonds in 18K White Gold | RockHer
The Abbey Hidden Halo Pavé Round Engagement Ring Setting in Platinum
Hidden Halo Pavé Round · Platinum
$3,170.00
The Abbey Hidden Halo Solitaire Engagement Ring Setting for Oval Diamonds in Platinum | RockHer
The Abbey Hidden Halo Pavé Oval Engagement Ring Setting in 18K White Gold
Hidden Halo Pavé Oval · 18K White Gold
$3,170.00
The Dolly Hidden Halo Solitaire Engagement Ring Setting for Oval Diamonds in 18K Yellow Gold | RockHer
The Dolly Double Hidden Halo Solitaire Oval Engagement Ring Setting in 18K Yellow Gold
Double Hidden Halo Solitaire Oval · 18K Yellow Gold
$3,545.00
The Blondie Twisted Hidden Halo Solitaire Engagement Ring Setting for Round Diamonds in 18K White Gold | RockHer
The Blondie Double Hidden Halo Solitaire Round Engagement Ring Setting in Platinum
Double Hidden Halo Solitaire Round · Platinum
$3,730.00
The Cyndi Hidden Halo Solitaire Engagement Ring Setting for Round Diamonds in 18K White Gold | RockHer
The Cyndi Curved Hidden Halo Solitaire Round Engagement Ring Setting in 18K White Gold
Curved Hidden Halo Solitaire Round · 18K White Gold
$2,425.00
The Joni Hidden Halo Solitaire Oval Engagement Ring Setting in Platinum
The Joni Hidden Halo Solitaire Oval Engagement Ring Setting in Platinum
Hidden Halo Solitaire Oval · Platinum
$2,330.00
The Eartha Hidden Halo Solitaire Engagement Ring Setting for Oval Diamonds in Platinum | RockHer
The Eartha Upper Hidden Halo Solitaire Oval Engagement Ring Setting in Platinum
Upper Hidden Halo Solitaire Oval · Platinum
$2,610.00
The Dolly Hidden Halo Solitaire Engagement Ring Setting for Round Diamonds in 18K Yellow Gold | RockHer
The Dolly Double Hidden Halo Solitaire Round Engagement Ring Setting in 18K Yellow Gold
Double Hidden Halo Solitaire Round · 18K Yellow Gold
$3,640.00
The Brenda Hidden Halo Solitaire Engagement Ring Setting for Emerald Cut Diamonds in Platinum | 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
$2,985.00
Round Brilliant, East-West Eight Claw Comfort Fit Solitaire, in Platinum | RockHer
The Spring East West Eight Claw Comfort Fit Solitaire Round Engagement Ring Setting in Platinum
East West Eight Claw Comfort Fit Solitaire Round · Platinum
$2,795.00
Cathedral Surprise Stone Solitaire Asscher, in Platinum | RockHer
The Rosanna Cathedral Surprise Stone Solitaire Asscher Cut Engagement Ring Setting in Platinum
Cathedral Surprise Stone Solitaire Asscher Cut · Platinum
$3,545.00
Scroll Gallery Comfort Fit Solitaire Princess, in Platinum | RockHer
The Rio Scroll Gallery Comfort Fit Solitaire Princess Cut Engagement Ring Setting in Platinum
Scroll Gallery Comfort Fit Solitaire Princess Cut · Platinum
$2,705.00
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✦
Keep Looking

Continue Exploring

Engagement Rings
Engagement Rings
Made to order in Los Angeles
Explore →
Wedding Bands
Wedding Bands
For him & for her
Explore →
Jewelry Gifts
Jewelry Gifts
Ready to celebrate
Explore →

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.