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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.

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

Princess and Baguette Setting

Radiant and Baguette Setting

Round and Baguette Setting

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

Man Made Diamonds set in White Gold Oval and Baguette Setting (Profile View)

Exceptional Quality Diamonds set in White Gold Oval and Baguette Diamond Engagement Ring (Side View)

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

High Quality Diamonds set in Yellow Gold Oval and Baguette Diamond Engagement Ring (Main View)

Rose Gold Oval and Baguette Setting featuring Lab Diamonds (Main View)

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

Platinum & Yellow Gold Oval and Baguette Diamond Engagement Ring featuring Diamonds (Main View)

Platinum & Yellow Gold Oval and Baguette Diamond Engagement Ring featuring Hand Selected Man Made Diamonds (Profile View)

Platinum & Yellow Gold Oval and Baguette Setting featuring 2.0 Carat Lab Diamonds (Main View)

Exceptional Quality Lab Grown Diamonds Oval and Baguette Setting in Platinum & Yellow Gold (Profile View)

Platinum & Rose Gold Oval and Baguette Diamond Engagement Ring featuring Exceptional Quality Lab Diamonds (Main View)

High Quality Diamonds Oval and Baguette Setting in Platinum & Rose Gold (Profile View)

Platinum & Rose Gold Oval and Baguette Diamond Engagement Ring featuring Man Made Diamonds (Main View)

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

plaitnum 3.5 carat oval and baguette lab diamond engagement ring in box ada diamonds design ad 459 macro

platinum oval and baguette three stone lab diamond engagement ring ada diamonds design ad 459 profile

oval and baguette three stone engagement ring yellow gold

yellow gold oval and baguette three stone lab diamond engagement ring ada diamonds design ad 459 profile

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

Oval labratory grown diamond set with baguette side stones in platinum ada diamonds design ad-459

14k yellow gold oval and baguette engagement ring featuring lab made diamonds

platinum engagement ring with oval and baguette lab grown diamonds ada diamonds design ad-459

18k white gold engagement ring with 1.5ct oval and baguette lab grown diamonds ada diamonds design ad-459

Diamonds set in Oval and Baguette Diamond Engagement Ring

18k yellow gold engagement ring with oval and baguette lab grown diamonds ada diamonds design ad-459

yellow gold engagement ring with oval and baguette lab created diamonds ada diamonds design ad-459

yellow gold oval and baguette three stone lab grown diamond engagement ring with custom contour wedding band ada diamonds design ad 459 and ad 181

2.0 Carat Lab Created Diamonds Oval and Baguette Setting in Yellow Gold (Main View)

GIA certified 2.25ct oval lab grown diamond with baguette side stones set in 14 karat white gold ada diamonds design ad-459

2.5ct oval lab grown diamond engagement ring with baguette side stones set in platinum ada diamonds design ad-459

2.5 ctw Lab Created Diamonds Oval and Baguette Setting in Yellow Gold (Main View)

platinum 2.5 oval and baguette three stone lab diamond engagement ring ada diamonds design ad 459

platinum oval and baguette three stone lab created diamond engagement ring ada diamonds design ad 459 on model

3.0 Carat Diamonds Oval and Baguette Setting in Platinum (Main View)

3.5ctw Oval and Baguette Three Stone Engagement Ring in Platinum

3.0 Carat Lab Diamonds Oval and Baguette Diamond Engagement Ring in Platinum (Main View)

3.5ctw Oval and Baguette Three Stone Engagement Ring Profile View

2.5 ctw Lab Diamonds Oval and Baguette Diamond Engagement Ring in Yellow Gold (Main View)

3ctw Oval 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. 

Oval 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.