5 Carat Lab Grown Diamond Engagement Rings

Browse examples, or shop diamonds & settings.

Lab Diamonds, Engagement Rings, Diamond Sizes

The High Jewelry Standard for Lab Grown Diamonds.

At Ada Diamonds, we specialize in curating the highest-quality lab diamonds set in made-to-order engagement rings. Each piece is produced start to finish under one roof in our NYC flagship.

No matter what you're shopping for, our team of experts is here to support you in bringing your vision to life.

Visit the gallery below to get inspired by the gorgeous 4 carat engagement rings we have created for past clients.

What to Know

A 5 carat lab grown diamond that looks genuinely beautiful is rare by any standard. At this weight, the gap between a great stone and a mediocre one is wider than at any other size.

No matter what size diamond you're considering, curation matters. You should never choose a diamond based on a grading report alone. While two diamonds may share identical 4Cs, they can look very different in person. Every diamond at Ada is hand-selected in person by our expert team. We curate only the rare few lab grown diamonds that meet our standards for cut precision, light performance, and beauty in real life.

Learn about the 4Cs

What to Know

Learn about the 4Cs

Why Ada Diamonds

We know that a purchase this important deserves an exceptional experience. Whether you purchase online, or enjoy complimentary design support with a Diamond Concierge, each piece is made to order and crafted in house from start to finish. Our master jewelers create each setting one at a time, built specifically for its stone. Nothing is mass-produced. Every detail is considered, refined, and made to last for a lifetime.

Our process

Why Ada Diamonds

Our process

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White Gold Round Petite Four Prong Solitaire featuring Diamonds (Main View)

Yellow Gold Round Petite Four Prong Solitaire featuring High Quality Diamonds (Main View)

14k yellow gold 4 ct round solitaire engagement ring featuring lab created diamond ada diamonds design ad 066 macro

Diamonds Round Petite Four Prong Solitaire in Rose Gold (Main View)

Round Petite Four Prong Solitaire$1,250

Created Diamonds Oval Petite Four Prong Solitaire Diamond Engagement Ring in White Gold (Main View)

Yellow Gold Oval Petite Four Prong Solitaire featuring Man Made Diamonds (Main View)

14k Yellow Gold 2.5ct Oval Lab Diamond Solitaire Engagement Ring Ada Diamonds Design AD-143 Floral Background

Lab Grown Diamonds set in Rose Gold Oval Petite Four Prong Solitaire (Main View)

High Quality 2.0 ct Man Made Diamonds Oval Petite Four Prong Solitaire in Rose Gold (Side View)

Oval Petite Four Prong Solitaire$1,250

White Gold Emerald Petite Four Prong Solitaire featuring Synthetic Diamonds (Main View)

High Quality Diamonds set in Yellow Gold Emerald Petite Four Prong Solitaire (Main View)

18k Yellow Gold 2.5 Carat Emerald Cut Lab Diamond Solitaire Engagement Ring Ada Diamonds Design AD-235 Artistic Image in Box

Lab Diamonds set in Rose Gold Emerald Petite Four Prong Solitaire (Main View)

14k Rose Gold Four Carat Emerald Cut Lab Created Diamond Solitaire Ada Diamonds Design AD-235

Emerald Petite Four Prong Solitaire$1,250

Diamonds Pear Petite Solitaire in White Gold (Main View)

Lab Diamonds Pear Petite Solitaire Diamond Engagement Ring in Yellow Gold (Main View)

14k Yellow Gold 2.25 Carat Pear Lab Diamond Solitaire Engagement Ring with Hidden Halo Ada Diamonds Design AD-187 Artistic Image

Lab Created Diamonds Pear Petite Solitaire Diamond Engagement Ring in Rose Gold (Main View)

Alternate Rose Gold Image for Pear Petite Solitaire

Pear Petite Solitaire$1,250

Lab Diamonds Cushion Petite Four Prong Solitaire in White Gold (Main View)

Created Diamonds set in Yellow Gold Cushion Petite Four Prong Solitaire Diamond Engagement Ring (Main View)

Lab Grown Diamonds set in Rose Gold Cushion Petite Four Prong Solitaire (Main View)

rose gold cushion cut petite four prong lab diamond solitaire engagement ring ada diamonds design ad 221

Cushion Petite Four Prong Solitaire$1,250

White Gold Bezel Solitaire featuring Diamonds (Main View)

Diamonds set in Yellow Gold Bezel Solitaire (Main View)

Ada Diamonds Design 148 Lab Diamond Bezel Solitaire Engagement Ring Artistic Shot In Yellow Gold AD148

Rose Gold Bezel Solitaire featuring Diamonds (Main View)

14k Rose Gold 1.5 ct Round Bezel Set Lab Created Diamond Solitaire Engagement Ring Ada Diamonds Design AD-148 Artistic Image

Bezel Solitaire$1,450

White Gold Round Classic Six Prong Solitaire Diamond Engagement Ring featuring Diamonds (Main View)

Lab Diamonds Round Classic Six Prong Solitaire in Yellow Gold (Main View)

2.75 Carat Lab Diamonds set in Yellow Gold Round Classic Six Prong Solitaire Diamond Engagement Ring (Main View)

Diamonds Round Classic Six Prong Solitaire Diamond Engagement Ring in Rose Gold (Main View)

Classic Six Prong Solitaire Lab Diamond Engagement Ring In Rose Gold AD-067

Round Classic Six Prong Solitaire$1,450

White Gold Emerald East-West Solitaire Diamond Engagement Ring featuring Diamonds (Main View)

Hand Selected Lab Grown Diamonds Emerald East-West Solitaire in Yellow Gold (Main View)

custom two tone white and yellow gold three carat emerald cut lab diamond solitaire engagement ring ada diamonds design ad 337

Exceptional Quality Lab Diamonds Emerald East-West Solitaire Diamond Engagement Ring in Rose Gold (Main View)

Emerald East-West Solitaire$1,350

White Gold Emerald Trellis Solitaire featuring Synthetic Diamonds (Main View)

Hand Selected Lab Diamonds set in Yellow Gold Emerald Trellis Solitaire Diamond Engagement Ring (Main View)

Lab Diamonds Emerald Trellis Solitaire Diamond Engagement Ring in Rose Gold (Main View)

Emerald Trellis Solitaire$1,350

Diamonds Oval Cathedral Solitaire Diamond Engagement Ring in White Gold (Main View)

Yellow Gold Oval Cathedral Solitaire Diamond Engagement Ring featuring High Quality Diamonds (Main View)

18k Yellow Gold Oval Cathedral Solitaire featuring 2.0 Carat Diamonds (Main View)

Rose Gold Oval Cathedral Solitaire Diamond Engagement Ring featuring Diamonds (Main View)

Oval Cathedral Solitaire$1,350

High Quality 2.0 ct Man Made Diamonds Toi et Moi Lab Diamond Engagement Ring in 18k White Gold (Main View)

Created Diamonds set in Yellow Gold Toi et Moi Ring (Main View)

14k yellow gold pear and princess cut 3.5 carat lab diamond toi et moi engagement ring ada diamonds design ad 363

Lab Diamonds set in Rose Gold Toi et Moi Ring (Main View)

Toi et Moi Ring$1,750

Lab Diamonds set in White Gold Emerald Three Stone Setting (Main View)

Lab Diamonds Emerald Three Stone Diamond Engagement Ring in Yellow Gold (Main View)

Hand Selected Diamonds set in Rose Gold Emerald Three Stone Diamond Engagement Ring (Main View)

custom rose gold emerald three stone setting featuring 3ct emerald cut lab grown diamond with emerald side stones

Emerald Three Stone Setting$2,650

Diamonds set in White Gold Emerald and Baguette Diamond Engagement Ring (Main View)

Lab Diamonds Emerald and Baguette Setting in Yellow Gold (Main View)

14k white gold emerald and baguette setting featuring lab grown diamond

Rose Gold Emerald and Baguette Diamond Engagement Ring featuring Lab Diamonds (Main View)

Emerald and Baguette Setting$2,450

Lab Diamonds set in White Gold Round Three Stone Diamond Engagement Ring (Main View)

Hand Selected Diamonds Round Three Stone Diamond Engagement Ring in Yellow Gold (Main View)

Lab Created Diamonds Round Three Stone Diamond Engagement Ring in Rose Gold (Main View)

Round Three Stone Setting$2,650

High Quality Lab Diamonds Oval and Pear Diamond Engagement Ring in White Gold (Main View)

Diamonds set in Yellow Gold Oval and Pear Diamond Engagement Ring (Main View)

14k yellow gold oval and pear laboratory grown diamond ring

Lab Diamonds set in Rose Gold Oval and Pear Setting (Main View)

14 karat rose gold oval and pear setting featuring laboratory grown oval and pear side stones

Oval and Pear Setting$2,450

Lab Diamonds Cushion and Baguette Setting in White Gold (Main View)

Lab Diamonds set in Yellow Gold Cushion and Baguette Setting (Main View)

Lab Diamonds set in Rose Gold Cushion and Baguette Diamond Engagement Ring (Main View)

Cushion and Baguette Setting$2,450

Lab Diamonds set in White Gold Trellis Split Shank Diamond Engagement Ring (Main View)

Exceptional Quality Lab Grown Diamonds set in Yellow Gold Trellis Split Shank Diamond Engagement Ring (Main View)

yellow gold oval pave split shank setting

Rose Gold Trellis Split Shank Diamond Engagement Ring featuring Lab Grown Diamonds (Main View)

Trellis Split Shank Setting$2,650

Lab Diamonds set in White Gold Oval Petite Four Prong Pavé Diamond Engagement Ring (Main View)

Yellow Gold Oval Petite Four Prong Pavé Setting featuring Exceptional Quality Diamonds (Main View)

14k gold 2.5ct oval lab diamond pavé engagement ring ada diamonds design ad 230 macro

Created Diamonds set in Rose Gold Oval Petite Four Prong Pavé Diamond Engagement Ring (Main View)

2.5 Carat Oval Lab Diamond Pavé Engagement Ring in Rose Gold Side View Ada Diamonds AD-230

Oval Petite Four Prong Pavé Setting$2,450

Diamonds set in White Gold Round Trellis Six Prong Pavé Setting (Main View)

Synthetic Diamonds Round Trellis Six Prong Pavé Setting in Yellow Gold (Main View)

Rose Gold Round Trellis Six Prong Pavé Diamond Engagement Ring featuring Hand Selected Lab Diamonds (Main View)

Round Trellis Six Prong Pavé Setting$2,650

Hand Selected Lab Grown Diamonds Pear Cathedral Pavé Diamond Engagement Ring in White Gold (Main View)

Yellow Gold Pear Cathedral Pavé Setting featuring Lab Grown Diamonds (Main View)

yellow gold 3 carat pear cathedral pave lab diamond engagement ring ada diamonds design ad 355 macro

Rose Gold Pear Cathedral Pavé Setting featuring Diamonds (Main View)

Pear Cathedral Pavé Setting$2,550

Diamonds Single Halo Split Shank Setting in White Gold (Main View)

Yellow Gold Single Halo Split Shank Setting featuring High Quality Lab Diamonds (Main View)

Rose Gold Single Halo Split Shank Setting featuring High Quality Diamonds (Main View)

Single Halo Split Shank Setting$3,150

Hand Selected Diamonds Oval Halo Pavé Diamond Engagement Ring in White Gold (Main View)

Lab Diamonds Oval Halo Pavé Diamond Engagement Ring in Yellow Gold (Main View)

2.5ct oval in halo pavé engagement ring 14k yellow gold

Rose Gold Oval Halo Pavé Setting featuring Lab Diamonds (Main View)

2ct oval rose gold engagement ring with halo and diamond band ada diamonds design ad 303

Oval Halo Pavé Setting$3,250

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ShapeSave

4.52ct D VVS1 Oval

Oval

4.52DVVS1$12,325

4.52ct D VVS1 Oval

$12,325

See Details

ShapeOval

Carat4.52 CT

ColorD

ClarityVVS1

Measurements13.41 x 9.37 x 5.85

LabGIA

L/W Ratio1.43

4.55ct E VVS2 Emerald

Emerald

4.55EVVS2$10,700

4.55ct E VVS2 Emerald

$10,700

See Details

ShapeEmerald

Carat4.55 CT

ColorE

ClarityVVS2

Measurements11.21 x 7.78 x 5.31

LabIGI

L/W Ratio1.44

4.71ct E VVS2 Emerald

Emerald

4.71EVVS2$11,075

4.71ct E VVS2 Emerald

$11,075

See Details

ShapeEmerald

Carat4.71 CT

ColorE

ClarityVVS2

Measurements11.50 x 8.13 x 5.21

LabGIA

L/W Ratio1.41

4.76ct D VVS2 Cushion

Elong.

4.76DVVS2$12,025

4.76ct D VVS2 Cushion

$12,025

See Details

ShapeElongated Cushion

Carat4.76 CT

ColorD

ClarityVVS2

Measurements11.58 x 8.79 x 6.13

LabGIA

L/W Ratio1.32

4.80ct E VVS2 Excellent Round

Round

4.80EVVS2$11,050

4.80ct E VVS2 Excellent Round

$11,050

See Details

ShapeRound

Carat4.8 CT

CutExcellent

ColorE

ClarityVVS2

Measurements10.81 x 10.77 x 6.69

LabGIA

L/W Ratio1.00

4.84ct D VS1 Radiant

Radiant

4.84DVS1$11,000

4.84ct D VS1 Radiant

$11,000

See Details

ShapeRadiant

Carat4.84 CT

ColorD

ClarityVS1

Measurements11.35 x 8.36 x 5.68

LabIGI

L/W Ratio1.36

5ct Lab Diamond FAQs

How do I choose a carat weight for my engagement ring?
What should I look for when choosing a lab diamond?
How does Ada select lab diamonds?
Can I design a custom ring?
Does Ada sell loose diamonds?

Explore Our Guides

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Everything you need to know about lab diamond shapes, from round brilliants to Asscher cuts.

Is It Safe to Buy a Lab Diamond Online?

Everything you need to know before buying a lab diamond online, and how to make sure you're getting what you pay for.

Explore Our Guides

4 Carat Lab Diamond Engagement Rings

Everything you need to know about 4 carat lab grown diamond engagement rings.

Engagement Rings

Guide to Lab Diamond Shapes

Everything you need to know about lab diamond shapes, from round brilliants to Asscher cuts.

Is It Safe to Buy a Lab Diamond Online?

Everything you need to know before buying a lab diamond online, and how to make sure you're getting what you pay for.

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5 Carat Lab Grown Diamond Engagement Rings

Browse examples, or shop diamonds & settings.

Lab Diamonds, Engagement Rings, Diamond Sizes

The High Jewelry Standard for Lab Grown Diamonds.

At Ada Diamonds, we specialize in curating the highest-quality lab diamonds set in made-to-order engagement rings. Each piece is produced start to finish under one roof in our NYC flagship.

No matter what you're shopping for, our team of experts is here to support you in bringing your vision to life.

Visit the gallery below to get inspired by the gorgeous 4 carat engagement rings we have created for past clients.