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.

Thank You for Your Inquiry! 

An Ada Diamonds concierge will contact you via email shortly. You can expect a response within 1-2 business days of your submission. We look forward to working with you.In the meantime, please follow <a target="_blank" rel="noopener noreferrer" href="https://instagram.com/adadiamonds">@AdaDiamonds</a>!

Need Help?

A US-based lab diamond expert will respond within 1 business day.&nbsp;

Global PopUp Form

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

Return Policy

We expect you to love your Ada jewelry. Should you be unhappy for any reason, return your item within 30 days for a full refund, less any non-refundable deposits or re-stocking fees. Jewelry must be in new, unworn condition and customer is responsible for return shipping. A return shipping label will be provided for a small fee.

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

Cushion and Round Setting

Round Three Stone Setting

Oval Three Stone Setting

White Gold Oval and Round Diamond Engagement Ring featuring Hand Selected Diamonds (Main View)

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

White Gold Oval and Round Diamond Engagement Ring featuring Hand Selected Man Made Diamonds (Side View)

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

Yellow Gold Oval and Round Setting featuring Exceptional Quality Lab Diamonds (Main View)

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

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

platinum oval and round setting with matching french u eternity band

oval and round setting in platinum featuring a trellis basket set with oval and round laboratory grown diamonds

2 ct oval and round three stone lab created diamond engagement ring yellow gold ada diamonds design ad 458 macro

Yellow Gold Oval and Round Setting featuring 1.5 ctw Lab Diamonds (Side View)

14k yellow gold 3ct oval and round engagement ring with man made diamonds ada diamonds design ad 458 macro

14k yellow gold 3.5 carat oval engagement ring with round side stones featuring lab grown diamonds ada diamonds design ad 458 profile

High Quality 1.5 ctw Diamonds Oval and Round Diamond Engagement Ring in Yellow Gold (Profile View)

white gold oval and round setting with a trellis basket featuring lab grown diamonds ada diamonds design ad-458

18k white gold oval and round setting featuring 1ct oval lab made diamond and certified ideal round side stones ada diamonds design

Exceptional Quality 1.5 Carat Diamonds set in 14 Karat Rose Gold Oval and Round Setting (Main View)

2.0 Carat Diamonds Oval and Round Setting in Yellow Gold (Profile View)

custom 2ct oval lab grown diamond with round lab grown diamond side stones in 18k rose gold with matching nesting band

Yellow Gold Oval and Round Diamond Engagement Ring featuring 2.25 Carat Lab Diamonds (Main View)

14k rose gold oval and round stone setting featuring a 1.25ct oval lab created diamond

lab diamond three stone engagement ring round and oval

white gold oval and round engagement ring featuring 1.75ct oval lab grown diamond

yellow gold two carat oval and round three stone lab diamond ring ada diamonds design ad 458 on model

Yellow Gold Oval and Round Setting featuring 2.25 ct Lab Diamonds (Main View)

14k yellow gold 3 carat oval and round lab diamond three stone engagement ring ada diamonds design ad 458 on model

1.75 Carat Created Diamonds set in Oval and Round Diamond Engagement Ring (Main View)

14k yellow gold 2 ct oval lab diamond engagement ring with round side stones ada diamonds design ad 458 profile on hand

18k rose gold matching oval and round engagement ring and nesting wedding band set featuring lab grown diamonds

1.75 ct Diamonds Oval and Round Setting in Platinum (Main View)

2.25ct Oval and Round Engagement Ring in Platinum

1.75 ctw Diamonds Oval and Round Setting in Platinum (Profile View)

2.25ctw Oval and Round Engagement Ring in Platinum

2.0 Carat Lab Grown Diamonds Oval and Round Diamond Engagement Ring in Yellow Gold (Main View)

2.25ctw Oval and Round Three Stone Engagement Ring in 18k Yellow Gold

Rose Gold Oval and Round Setting featuring 1.5 Carat Diamonds (Main View)

2ctw Oval and Round Three Stone Engagement Ring in 14k Rose Gold

Your Choice of Gold: 0.20ct Each Side Stones (0.4ctw): $2,650 USD0.25ct Each Side Stones (0.5ctw): $2,750 USD0.30ct Each Side Stones (0.6ctw): $2,900 USD0.40ct Each Side Stones (0.8ctw): $3,450 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 brilliant classic, this three stone setting features a pair of round lab grown side stones. Available in trellis or basket style.

Oval and Round Setting

Three Stone 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 New York and Austin TX.