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A sample of our hand-selected, pre-vetted, in-house inventory, immediately available for sale. Want to see more options? <a href="/inquire">Inquire</a> now for a curated list.&nbsp;

Our friendly Diamond Concierge Team is available to answer any questions you may have, help you choose a spectacular lab diamond, and customize this engagement ring to your exact specifications.

ER PDP Checkout Fine Print

Complimentary engraving up to 10 characters. Longer engravings or those with special characters may be available for an extra charge upon inquiry. Please note, resizing engraved rings may require an additional fee.

Not sure what size halo is best? <a href="/inquire">Please inquire</a> and a Diamond Concierge will be happy to discuss with you.

Always custom created, never mass-produced. We proudly craft all of our engagement rings in the USA.

Visit <a href="/visit">one of our showrooms</a> or join the thousands of clients around the world who work with us <a href="/diamond-concierge-process">entirely virtually</a>.

After checkout, a Concierge will contact you via email to confirm your order. Prior to production, you will receive a rendering of your ring's exact dimensions for your approval. If you are unresponsive, your order may be canceled.Have questions? Not ready to checkout? <a href="/inquire">Inquire</a> now and a Concierge will respond within 1 business day.&nbsp;

Setting Price as Currently Configured

PDP ER - Setting Price as Currently Configured

Free US Shipping fully insured with signature required to a residence, business address, or Fedex Office. Purchases over $15,000 will ship FedEx Priority Overnight. Purchases of less than $15,000 will ship Fedex Two Day. International Shipping to 69 countries, fully insured. International shipping fees start at $75 USD.

When it comes to durability and having an engagement ring that stands the test of time, platinum is our recommended choice for a white metal.

Round and Baguette Setting - Ada Diamonds

Read Our <a href="/synthetic-diamond-facts-and-misconceptions/frequently-asked-questions-about-lab-grown-diamonds">Frequently Asked Questions</a>See Our <a href="/buy-lab-diamonds">Diamond Pricing</a>

New to Lab Diamonds?

Overlay Centered

A Purchase This Important Deserves&nbsp;an <a href="/ada-vs-competition">Impeccable Buying Experience</a>

Why Choose Ada Diamonds?

Shop <a href="/wedding-bands">Wedding Bands</a> Shop <a href="/mens-wedding-bands">Men’s Bands</a>

From Will You? to _I Do_!

emerald-eternity-band-with-lab-grown-diamonds.jpg

Ada was founded by a husband-wife team. <a href="/about-ada-diamonds">Our Genesis</a> &amp; <a href="/ethical-supply-chains">Our Values</a>

Grown From Love

Founders of Ada Diamonds Sitting on a Beach at Sunset

Ready to Begin Your Concierge Experience?

Engagement Modal Form

Ada Diamonds specializes in large, sensational diamonds of superlative quality. Our diamonds are cut from the highest purity diamond crystals, have optimal cut and sparkle, and are always eye clean. Much like mined diamonds, lab diamonds are priced based on their quality characteristics. Use the tool below to understand our pricing:

Ada Diamonds is the Leading Luxury Purveyor of Lab Diamonds

Asscher and Baguette Setting

Cushion and Baguette Setting

Emerald and Baguette Setting

Oval and Baguette Setting

Princess and Baguette Setting

Radiant and Baguette Setting

White Gold Round and Baguette Diamond Engagement Ring featuring Lab Created Diamonds (Main View)

White Gold Round and Baguette Diamond Engagement Ring featuring Diamonds (Profile View)

Exceptional Quality Synthetic Diamonds Round and Baguette Diamond Engagement Ring in White Gold (Side View)

Yellow Gold Round and Baguette Diamond Engagement Ring featuring Diamonds (Main View)

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

Lab Diamonds set in Rose Gold Round and Baguette Setting (Main View)

Exceptional Quality Diamonds Round and Baguette Diamond Engagement Ring in Rose Gold (Main View)

Platinum & Yellow Gold Round and Baguette Setting featuring Diamonds (Profile View)

Exceptional Quality Created Diamonds set in Platinum & Yellow Gold Round and Baguette Diamond Engagement Ring (Profile View)

Lab Diamonds Round and Baguette Setting in Platinum & Rose Gold (Profile View)

Diamonds Round and Baguette Diamond Engagement Ring in Platinum & Rose Gold (Profile View)

platinum 3 ct round and baguette lab diamond three stone engagement ring ada diamonds design ad 071 macro

Platinum Three Stone Engagement Ring Setting Featuring Lab Grown 2 carat Ideal Round and Baguette Side Stones Ada Diamonds Design AD-071

platinum 2.5ct round and baguette three stone lab diamond engagement ring ada diamonds design ad 071 macro

profile view of 2.5 ct round and baguette three stone lab diamond ring ada diamonds design ad 071

1.5 Carat Diamonds Round and Baguette Diamond Engagement Ring in Yellow Gold (Main View)

1.5 ctw Diamonds Round and Baguette Diamond Engagement Ring in Yellow Gold (Profile View)

Custom 18k Three Stone Setting with Lab Grown Round and Tapered Baguette Diamonds Ada Diamonds Design AD-071

Custom Platinum Three Stone Setting with Man Made Round and Baguette Diamonds Ada Diamonds Design AD-071

14k White Gold Three Stone Setting with 1.5ct Excellent Round and Tapered Baguette Lab Diamonds Ada Diamonds Design AD-071

Platinum 2.25 Carat Round and Baguette Lab Created Diamond Engagement Ring Ada Diamonds Design AD-071 Macro Image

18k Yellow Gold Round and Baguette Setting Featuring 2 carat Excellent Round Lab Grown Diamonds Ada Diamonds Design AD-071

14k Yellow Gold Round and Baguette Setting Featuring 1.75ct Excellent Round Lab Grown Diamonds Ada Diamonds Design AD-071

2.75 ctw Lab Diamonds set in Platinum Round and Baguette Diamond Engagement Ring (Profile View)

Platinum 3 Carat Round and Tapered Baguette Lab Diamond Engagement Ring with Lab Diamond Eternity Band Ada Diamonds Design AD-071 Artistic Image in White Box

Platinum 2.5ct Round and Tapered Baguette Lab Diamond Engagement Ring and 5ct Round Lab Diamond Wedding Band Ada Diamonds Design AD-071 and AD-164 Floral Background

14k Yellow Gold Round and Baguette Setting Featuring 1.25ct Excellent Round Man Made Diamonds Ada Diamonds Design AD-071

14k White Gold Round and Baguette Setting Featuring One Carat Ideal Round HPHT Lab Grown Diamonds Ada Diamonds Design AD-071

yellow gold round and baguette three stone lab diamond engagement ring ada diamonds design ad 071 on model

14 karat Yellow Gold Round and Baguette Setting Featuring 1.75ct Ideal Round Lab Grown Diamonds Ada Diamonds Design AD-071

Custom 14k White Gold Round and Baguette Setting Featuring 2 ct Excellent Round Lab Grown Diamonds Ada Diamonds Design AD-071

Custom Platinum Round and Baguette Setting Featuring 2.5 ct Ideal Round Lab Grown Diamond Ada Diamonds Design AD-071

18 karat White Gold Round and Baguette Setting Featuring a GIA Graded 2.5ct Excellent Round Lab Grown Diamonds Ada Diamonds Design AD-071

2.75 Carat Lab Diamonds Round and Baguette Diamond Engagement Ring in Platinum (Main View)

Platinum 3 carat Round and Baguette Engagement Ring Featuring 3 ct Excellent Round Lab Grown Diamonds Ada Diamonds Design AD-071

2.5 ct Diamonds Round and Baguette Diamond Engagement Ring in Platinum (Side View)

14k White Gold Round and Baguette Engagement Ring Featuring 3 carat Ideal Round Man Made Diamond Ada Diamonds Design AD-071

Platinum Round and Baguette Setting featuring Exceptional Quality 2.5 Carat Lab Diamonds (Main View)

2.5 ctw Lab Diamonds set in Platinum Round and Baguette Setting (Main View)

3ctw Round and Baguette Three Stone Engagement Ring in Platinum

2.5 ct Diamonds Round and Baguette Setting in Platinum (Profile View)

3ctw Round and Baguette Engagement Ring in Platinum Profile View

Yellow Gold Round and Baguette Diamond Engagement Ring featuring 1.5 ct Lab Diamonds (Main View)

1.75ctw Round and Baguette Three Stone Engagement Ring in 14k Yellow Gold

Your Choice of Gold: 0.10ct Each Side Stones (0.20ctw): $2,450 USD0.15ct Each Side Stones (0.30ctw): $2,550 USD0.20ct Each Side Stones (0.40ctw): $2,650 USD0.35ct Each Side Stones (0.70ctw): $3,200 USD Starting at price is for the setting and side stones only (center stone priced separately) and includes DEF/VS lab grown diamond side stones. Platinum and two-tone available for an additional $300 fee. Subject to availability; all side stone weights and measurements are approximate.

A distinctive three stone engagement ring setting featuring conflict-free, lab grown baguette side stones. 

Round and Baguette Setting

Three Stone Baguette

Custom made-to-order three stone ring featuring conflict-free lab diamonds hand-selected for quality, fire, and brilliance. Available options: platinum, 14k or 18k gold: white, yellow, rose. Ada Diamonds is the leading luxury purveyor and the best place to buy a lab diamond. Virtual consultations available worldwide; private in-person appointments available in San Francisco, New York, and Austin TX.