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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.

Exceptional Quality 3.0 Carat Lab Created Diamonds Round Three Stone Pavé Setting in Platinum (Main View)

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_!

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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

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Oval and Round Three Stone Pavé Setting

18k White Gold Round Three Stone Pavé Setting featuring 2.0 ctw Lab Created Diamonds (Main View)

White Gold Round Three Stone Pavé Diamond Engagement Ring featuring Hand Selected Diamonds (Profile View)

White Gold Round Three Stone Pavé Setting featuring Lab Diamonds (Side View)

Exceptional Quality Lab Diamonds set in Yellow Gold Round Three Stone Pavé Setting (Main View)

Synthetic Diamonds Round Three Stone Pavé Diamond Engagement Ring in Yellow Gold (Main View)

Created Diamonds set in Rose Gold Round Three Stone Pavé Setting (Main View)

Man Made Diamonds set in Rose Gold Round Three Stone Pavé Setting (Main View)

Platinum Round Three Stone Pavé Setting featuring 3.0 ct Diamonds (Main View)

Platinum Round Three Stone Pavé Diamond Engagement Ring featuring 3.0 ctw Diamonds (Side View)

Yellow Gold Round Three Stone Pavé Diamond Engagement Ring featuring 3.0 ct Lab Diamonds (Main View)

Yellow Gold Round Three Stone Pavé Diamond Engagement Ring featuring High Quality 3.0 Carat Diamonds (Profile View)

3 carat round lab diamond in Three Stone Pave Engagement Ring AD231 in 18k yellow gold

18k Yellow Gold Three Stone Setting Featuring Two Round Lab Grown Diamonds and Smaller Lab Diamonds Pave Set Down the Band Ada Diamonds Design

3ct Round Three Stone Pave Setting Lab Grown Diamond Engagement Ring In Box  in 18k Yellow Gold AD231

2.0 ct Diamonds Round Three Stone Pavé Diamond Engagement Ring in Rose Gold (Main View)

rose gold three stone pave lab diamond engagement ring

Platinum round three stone pave engagement ring with 1.5ct lab created diamond GIA graded Ada diamonds design

3ctw three stone engagement ring with diamond band in platinum ada diamodns

14k White Gold Round Three Stone Pavé Lab Diamond Engagement Ring Ada Diamonds Design AD-231 Floral Background

14k White Gold Round Three Stone Pavé Lab Diamond Engagement Ring Ada Diamonds Design AD-231 Profile

3.0 Carat Lab Created Diamonds Round Three Stone Pavé Diamond Engagement Ring in Platinum (Main View)

platinum three stone setting featuring two round lab grown diamond side stones and 1.25 carat ideal round center stone Ada Diamonds Design ad-231

1.5ct lab created round three stone pave engagement ring

3.0 Carat Diamonds Round Three Stone Pavé Diamond Engagement Ring in Yellow Gold (Main View)

2ct lab grown diamond with two round side stones and pave set in white gold Ada Diamonds Design ad231

Exceptional Quality 3.0 Carat Diamonds set in Platinum Round Three Stone Pavé Diamond Engagement Ring (Main View)

three stone pave setting with a 3ct round center stone in yellow gold Ada Diamonds Design ad-231

three stone lab diamond engagement ring with 2ct round center stone and diamond band in platinum

4ct Manmade Diamond Three Stone Pave Setting Engagement Ring On Model AD231

3.0 ctw Lab Diamonds set in Platinum Round Three Stone Pavé Setting (Main View)

3ctw Round Three Stone Trellis Pavé Engagement Ring in Platinum

Platinum Round Three Stone Pavé Diamond Engagement Ring featuring 3.0 ctw Diamonds (Profile View)

Profile View of 3ctw Round Three Stone Trellis Pavé Engagement Ring in Platinum

Yellow Gold Round Three Stone Pavé Diamond Engagement Ring featuring 3.0 ct Lab Created Diamonds (Main View)

3ctw Round Three Stone Pavé Engagement Ring in 18k Yellow Gold

Lab Grown Diamonds Round Three Stone Pavé Setting in Rose Gold (Main View)

2ctw Round Three Stone Trellis Pavé Engagement Ring in 14k Rose Gold

Your Choice of Gold: 0.20ct Each Side Stones with 1.6mm pavé: $3,300 USD0.25ct Each Side Stones with 1.8mm pavé: $3,500 USD0.30ct Each Side Stones with 1.8mm pavé: $3,650 USD0.40ct Each Side Stones with 2.0mm pavé: $4,300 USD0.50ct Each Side Stones with 2.0mm pavé: $4,600 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, with pavé set in 3/4 coverage. Side stones at or below 0.50ct will be uncertified and hand-selected to match your center stone. Side stones above 0.50ct are available upon request and are individually certified. Platinum and two-tone available for an additional $300 fee. This style must be modified to accommodate a mixed-metal setting. Additional pavé sizes available: 2.2mm and 2.4mm.

A show-stopping three stone setting, featuring two round lab diamonds and smaller lab diamonds pavé set down the band. 

Three Stone U Pave

Round Three Stone Pavé Setting

Three Stone Pave Trellis

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.