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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_!

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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

Asscher and Pear Setting

Cushion and Pear Setting

Emerald and Pear Setting

Oval and Pear Setting

Princess and Pear Setting

Radiant and Pear Setting

Lab Grown Diamonds set in White Gold Round and Pear Setting (Main View)

Lab Diamonds set in White Gold Round and Pear Diamond Engagement Ring (Profile View)

Diamonds set in White Gold Round and Pear Diamond Engagement Ring (Side View)

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

Exceptional Quality Lab Created Diamonds set in Yellow Gold Round and Pear Diamond Engagement Ring (Main View)

Synthetic Diamonds set in Rose Gold Round and Pear Diamond Engagement Ring (Main View)

Hand Selected Synthetic Diamonds Round and Pear Diamond Engagement Ring in Rose Gold (Main View)

Two Carat Round Lab Diamond Engagement Ring with pear Side Stones Ada Diamonds Design AD-456

platinum 2.5ct round and pear three stone lab diamond engagement ring ada diamonds design ad 456 profile

platinum 2.5ct round and pear three stone lab diamond engagement ring ada diamonds design ad 456 profile vew

3ct round lab diamond engagement ring with pear side stones in platinum ada diamonds design ad 456 macro

platinum 3ct round and pear engagement ring with hidden halo ada diamonds design ad 456 profile view

14k gold 1.75ct round lab diamond engagement ring with pear side stones ada diamonds design ad 456

14k yellow gold round and pear three stone engagement ring with lab grown diamonds ada diamonds design ad 456

1.75 Carat Lab Diamonds set in Yellow Gold Round and Pear Setting (Main View)

Platinum Round and Pear Two Carat Lab Diamond Ring Ada Diamonds Design AD-456 Macro

Round and Pear Lab Diamond Three Stone Ring White Gold Ada Diamonds Design AD-456 Macro

Exceptional Quality 1.25 Carat Lab Diamonds set in Platinum Round and Pear Setting (Profile View)

18k Yellow Gold Three Stone Engagement Ring with Round and Pear Lab Diamonds Ada Diamonds Design AD-456 Artistic

Yellow Gold Round and Pear Manmade Diamond Engagement Ring Profile View

1.75 ctw Lab Created Diamonds set in Platinum Round and Pear Diamond Engagement Ring

1.75 ctw Lab Diamonds set in Platinum Round and Pear Setting (Profile View)

Yellow Gold 2.5ct Round Lab Diamond Ring with Pear Side Stones Ada Diamonds Design Ad-456 Macro

14k rose gold three stone round and pear lab diamond engagement ring ada diamonds design ad 456

18k rose gold round and pear three stone lab diamond engagement ring ada diamonds design ad 456

18k rose gold round and pear lab diamond ring ada diamonds design ad-456

yellow gold 1.5ct three stone lab diamond ring with pear and round lab diamonds ada diamonds design ad-456 profile

1.75 ctw Diamonds set in Yellow Gold Round and Pear Diamond Engagement Ring (Main View)

14k yellow gold trellis three stone ring with round and pears lab grown diamonds

18k yellow gold lab diamond three stone ring

classic round and pear setting with 1 carat man made diamond ada diamonds design

14k rose gold three stone round and pear lab diamond engagement ring ada diamonds design ad 456 profile view

basket style round and pear three stone lab diamond engagement ring in 18k rose gold

3.0 Carat Man Made Diamonds set in Platinum Round and Pear Diamond Engagement Ring (Main View)

Yellow Gold Round and Pear Diamond Engagement Ring featuring 1.75 ct Lab Created Diamonds (Main View)

Yellow Gold Lab Diamond Wedding Set with Round and Pear Three Stone Ring and Lab Diamond Wedding Ban Ada Diamonds Design AD-456 Floral Background

1.0 Carat Man Made Diamonds set in Yellow Gold Round and Pear Diamond Engagement Ring (Main View)

Exceptional Quality 1.0 ct Lab Diamonds set in Yellow Gold Round and Pear Setting (Main View)

High Quality 1.0 ctw Lab Diamonds set in Round and Pear Setting

platinum round 1.25ct lab diamond ring with pear side stones ada diamonds design ad-456 on hand

High Quality 1.25 ct Diamonds set in Rose Gold Round and Pear Diamond Engagement Ring (Main View)

yellow gold round and pear lab diamond engagement ring ada diamonds design ad -456 on model

1.5 Carat Round Lab Diamond Ring with Pear Side Stones Ada Diamonds Design AD-456 on Model

14k yellow gold 1.5ct round lab diamond and pear engagement ring ada diamonds design ad-456 on hand

Rose Gold Round and Pear Setting featuring Hand Selected 1.25 ctw Synthetic Diamonds (Main View)

platinum 1.5ct round lab diamond and pear engagement ring ada diamonds design ad-456 on hand

yellow gold three stone ring with lab diamonds

Yellow Gold Pear and Round Lab Diamond Ring 1.75 Carat on Hand Ada Diamonds Design AD-456

1.75 Carat Pear and Round Lab Diamond Ring Ada Diamonds Design AD-456 on Model

2 carat lab diamond round with pear side stones

Platinum Round and Pear Diamond Engagement Ring featuring Hand Selected 2.25 ctw Diamonds (Side View)

platinum 3 ct round and pear three stone lab grown diamond engagement ring ada diamonds design ad 456 on model

platinum 2ct round and pear three stone lab diamond engagement ring with contoured wedding band ada diamonds design ad 456 and ad262 on model

Exceptional Quality 1.75 Carat Created Diamonds set in Yellow Gold Round and Pear Setting (Main View)

Yellow Gold Round and Pear Diamond Engagement Ring featuring 1.5 ct Lab Diamonds (Profile View)

Hand Selected 1.75 Carat Diamonds set in Platinum Round and Pear Setting (Profile View)

2.25 Carat Lab Diamonds set in Platinum Round and Pear Diamond Engagement Ring (Profile View)

yellow gold 1.5ct round and pear three stone lab diamond engagement ring with spacer bands ada diamonds desing ad 456 and ad195 on model

Hand Selected 3.0 ct Created Diamonds set in Platinum Round and Pear Setting (Main View)

3.3ctw Round and Pear Engagement Ring in Platinum

Exceptional Quality 3.0 Carat Lab Created Diamonds set in Platinum Round and Pear Setting (Profile View)

3.3ctw Round and Pear Engagement Ring in Platinum Profile View

Yellow Gold Round and Pear Setting featuring 1.5 ctw Diamonds (Main View)

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

1.25 ctw Lab Diamonds set in Round and Pear Setting (Main View)

1.5ctw Round and Pear Three Stone Engagement Ring in 14k Rose 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 USD0.30ct Each Side Stones (0.60ctw): $3,000 USD0.50ct Each Side Stones (1.0ctw): $3,750 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. 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.

A modern setting, featuring a pair of pear cut lab grown diamond side stones. Available in trellis, classic, or basket style.

Round and Pear Setting

Three Stone Pear

Custom made-to-order round 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.