• Christmas Big Sale 25% Off | Site-Wide | Use Coupon Code "CHRISTMAS25" at Checkout
  • 16 Dec Last day to order for Christmas delivery
  • Proudly Made in USA   usa flag
  • Buy Now, Pay Later
Fascinating Diamonds

3 Carat Engagement Rings

Shop 3 carat diamond engagement ring – make your proposal unforgettable with expertly cut brilliance. Every three carat diamond ring is priced transparently and crafted to perfection.

Explore Our 3 Carat Diamond Ring Collection


round-cut-2-tone-3-stone-diamond-swirl-engagement-ring-in-FDO50895ROR-NL-RG
Fascinating Diamond
round-cut-2-tone-3-stone-diamond-swirl-engagement-ring-in-FDO50895ROR-NL-RG
Fascinating Diamond

2 Tone 3 Stone Diamond Swirl Ring

$2,938.25
3-stone-hidden-halo-diamond-ring-with-wedding-band-in-FDENS3179RORANGLE3-NL-RG
Fascinating Diamond
3-stone-hidden-halo-diamond-ring-with-wedding-band-in-FDENS3179RORANGLE3-NL-RG
Fascinating Diamond

3 Stone Hidden Halo Ring With Band

$3,751.30
halo-under-diamond-3-stone-round-cut-engagement-ring-in-FD10616ROR-ANGLE3-NL-RG
Fascinating Diamond
halo-under-diamond-3-stone-round-cut-engagement-ring-in-FD10616ROR-ANGLE3-NL-RG
Fascinating Diamond

Under Halo 3 Stone Round Cut Engagement Ring

$2,994.60
twisted-under-halo-diamond-engagement-ring-in-FD10090OVRANGLE3-NL-RG
Fascinating Diamond
twisted-under-halo-engagement-ring-rose-gold-fdenr10090-model
Fascinating Diamond

Twisted Under Halo Engagement Ring

$2,751.95
round-cut-prong-studded-accented-solitaire-engagement-ring-in-FD10955RORANGLE3-NL-RG
Fascinating Diamond
round-cut-prong-studded-accented-solitaire-engagement-ring-in-FD10955RORANGLE3-NL-RG
Fascinating Diamond

Prong Studded Accented Solitaire Ring

$3,446.55
swirl-bridal-set-round-halo-diamond-with-baguette-in-FD10355ROANGLE3-NL-RG
Fascinating Diamond
swirl-bridal-set-round-halo-diamond-with-baguette-in-FD10355ROANGLE3-NL-RG
Fascinating Diamond

Swirl Halo Bridal Ring Set

$5,338.30
swirl-halo-diamond-engagement-ring-with-baguette-in-FD10355RORANGLE3-NL-RG
Fascinating Diamond
swirl-halo-big-engagement-ring-rose-gold-fdenr10355-model
Fascinating Diamond

Swirl Halo Big Engagement Ring

$4,574.70
infinity-twist-diamond-engagement-ring-in-rose-gold-FD11157RORANGLE3-NL-RG
Fascinating Diamond
infinity-twist-luxe-engagement-ring-rose-gold-fd11157r-ro-model
Fascinating Diamond

Infinity Twist Luxe Engagement Ring

$2,778.40
Princess Cut 3 Stone Trapezoid Engagement Ring
Fascinating Diamond
Princess Cut 3 Stone Trapezoid Engagement Ring
Fascinating Diamond

Princess Cut 3 Stone Trapezoid Engagement Ring

$3,696.10
Emerald Cut 3 Stone Trapezoid Engagement Ring
Fascinating Diamond
Emerald Cut 3 Stone Trapezoid Engagement Ring
Fascinating Diamond

Emerald Cut 3 Stone Trapezoid Engagement Ring

$3,696.10
Christmas  Sale
Round Cut Baguette Thin Band Engagement Ring
Fascinating Diamond
Round Cut Baguette Thin Band Engagement Ring
Fascinating Diamond
- 29%

Round Cut Baguette Thin Band Engagement Ring

$1,788.25
$2,834.75
East West Cushion 2 Tone Engagement Ring
Fascinating Diamond
East West Cushion 2 Tone Engagement Ring
Fascinating Diamond

East West Cushion 2 Tone Engagement Ring

$2,464.45
Oval Halo Infinity Vine Engagement Ring
Fascinating Diamond
Oval Halo Infinity Vine Engagement Ring
Fascinating Diamond
- 27%

Oval Halo Infinity Vine Engagement Ring

$1,848.05
$2,947.45
Bezel Halo Round Engagement Ring
Fascinating Diamond
Bezel Halo Round Engagement Ring
Fascinating Diamond

Bezel Halo Round Engagement Ring

$2,911.80
East West Swirl Oval Ring
Fascinating Diamond
east-west-swirl-oval-ring-white-gold-fdens11522-model
Fascinating Diamond
- 26%

East West Swirl Oval Ring

$1,360.45
$2,564.50
Bezel Set Round Split Engagement Ring
Fascinating Diamond
bezel-set-round-split-engagement-ring-rose-gold-fdenr11237-model
Fascinating Diamond
- 28%

Bezel Set Round Split Engagement Ring

$1,305.25
$2,497.80
Classic Cushion Cut 3 Stone Ring
Fascinating Diamond
classic-cushion-cut-3-stone-ring-yellow-gold-fdenr8035-model
Fascinating Diamond

Classic Cushion Cut 3 Stone Ring

$3,364.90
Twist 3 Stone Engagement Ring
Fascinating Diamond
Twist 3 Stone Engagement Ring
Fascinating Diamond

Twist 3 Stone Engagement Ring

$2,699.05
Swirl Bypass 3 Stone Ring
Fascinating Diamond
Swirl Bypass 3 Stone Ring
Fascinating Diamond

Swirl Bypass 3 Stone Ring

$2,699.05
secret-halo-engagement-ring-in-yellow-gold-FD11489R-ANGLE1-NL-YG
Fascinating Diamond
secret-halo-engagement-ring-yellow-gold-fdenr11489-model
Fascinating Diamond

Secret Halo Engagement Ring

$2,622.00
Christmas  Sale
3 Stone Trapezoid Engagement Ring
Fascinating Diamond
3 Stone Trapezoid Engagement Ring
Fascinating Diamond

3 Stone Trapezoid Engagement Ring

$3,696.10
delicate-three-stone-emerald-cut-diamond-ring-in-yellow-gold-FD9299EMR-NL-YG
Fascinating Diamond
delicate-three-stone-emerald-cut-diamond-ring-in-yellow-gold-FD9299EMR-NL-Fancy
Fascinating Diamond
- 0%

Delicate Three Stone Ring

$971.75
$2,532.30
Bezel 3 Stone Emerald Cut Ring
Fascinating Diamond
bezel-3-stone-emerald-cut-ring-rose-gold-fdenr10477-model
Fascinating Diamond

Bezel 3 Stone Emerald Cut Ring

$2,645.00
Round And Pear Shape Trellis Ring
Fascinating Diamond
round-and-pear-shape-trellis-ring-white-gold-fdenr8607-model
Fascinating Diamond

Round And Pear Shape Trellis Ring

$3,230.35

Three Carat Diamond Ring - Size, Value & What to Know

A 3 carat diamond ring is a popular choice for couples who want a balance of size, sparkle, and long-term value. Compared to smaller sizes like 1 or 2 carats, a 3 carat diamond stands out more on the hand without feeling oversized. It delivers noticeable brilliance and presence, making it ideal for engagement rings and milestone gifts.

Read More

3 Carat vs 1 Carat or 2 Carat Diamond Rings

The difference between a 1 carat and 3 carat diamond is not just size but also visual impact and rarity. Diamond prices increase with weight, so a 3 carat natural diamond ring costs significantly more. A 1 carat natural diamond may start around $5,000, while a 3 carat natural diamond of good quality usually ranges between $30,000 and $60,000 or more depending on cut, color, and clarity.

Lab Grown vs Natural 3 Carat Diamond Rings

A 3 carat lab grown diamond ring offers the same sparkle and durability at a much lower price — typically between $3,000 and $8,000. Lab diamonds are chemically identical to mined ones but come with ethical sourcing and transparent pricing, making them a practical choice for many couples.

Best Shapes for 3 Carat Rings

  • Oval cut: Appears slightly larger and elongates the finger.
  • Emerald cut: Highlights clarity with a sleek, mirror-like look.
  • Round cut: Offers maximum brilliance and a timeless appeal.

A 3 carat diamond engagement ring combines impressive size, modern value, and everyday wearability. Whether you choose lab-grown or natural, oval or round, it delivers the perfect mix of beauty, presence, and price transparency.

FAQs For 3 Carat Engagement Rings

Is a 3 carat diamond ring considered large?

Yes, a 3 carat diamond is noticeably large and makes a bold, luxurious statement.

How much does a 3 carat diamond ring cost?

Prices vary depending on cut, color, clarity, and diamond type. Natural diamonds can range from $25,000 to $150,000 or more, while lab-grown ones are usually much lower.

What settings look best for a 3 carat diamond?

Halo, solitaire, and three-stone settings are popular because they highlight the diamond’s size and brilliance.

Do 3 carat diamonds look bigger in certain shapes?

Yes, elongated shapes like oval, emerald, and marquise tend to appear larger than round or cushion cuts.

Are lab-grown 3 carat diamonds real diamonds?

Yes, they have the same physical and chemical properties as natural diamonds but cost significantly less.

How do I make a 3 carat diamond look its best?

Choose a high-quality cut, a secure yet elegant setting, and regular professional cleaning to maintain brilliance.

What metal suits a 3 carat diamond ring?

Platinum and white gold enhance sparkle, while yellow and rose gold add a warm contrast.

Show More

Terms & Conditions

Fascinating Diamonds supplies products listed on the Fascinating Diamonds, and Fascinating Diamonds websites, and in our stores under the following Terms and Conditions. Please read these Terms and Conditions, and our Privacy and Cookie Policies carefully before using any of our websites, or ordering from us.

The Terms and Conditions apply to your use of any Fascinating Diamonds website and to any products you purchase from them; regardless of how you access the website, including any technologies or devices where our website is available to you at home, on the move or in store

We reserve the right to update these Terms and Conditions at any time, and any updates affecting you or your purchases will be notified to you, by us in writing (via email), and on this page.

The headings in these Conditions are for convenience only and shall not affect their interpretation.

We recommend that you print and keep a copy of these Terms and Conditions for your future reference...