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.

Emerald Three Stone 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

Asscher and Emerald Setting

Lab Diamonds set in White Gold Emerald Three Stone Setting (Main View)

White Gold Emerald Three Stone Diamond Engagement Ring featuring Diamonds (Profile View)

White Gold Emerald Three Stone Setting featuring Diamonds (Side View)

Lab Diamonds Emerald Three Stone Diamond Engagement Ring in Yellow Gold (Main View)

High Quality Lab Diamonds Emerald Three Stone Diamond Engagement Ring in Yellow Gold (Main View)

Rose Gold Emerald Three Stone Diamond Engagement Ring featuring Lab Created Diamonds (Main View)

Hand Selected Diamonds set in Rose Gold Emerald Three Stone Diamond Engagement Ring (Main View)

Exceptional Quality 1.75 ct Lab Diamonds set in Emerald Three Stone Setting (Main View)

emerald three stone lab diamond engagement ring

High Quality 3.0 ct Diamonds set in Platinum Emerald Three Stone Setting (Side View)

2.25 ctw Lab Diamonds set in 14k Yellow Gold Emerald Three Stone Diamond Engagement Ring (Main View)

2.0 Carat Lab Diamonds Emerald Three Stone Diamond Engagement Ring in Rose Gold (Main View)

custom rose gold emerald three stone setting featuring 3ct emerald cut lab grown diamond with emerald side stones

Platinum 2.25 carat emerald three stone lab diamond engagement ring with emerald side stones ada diamonds design ad-114

2.0 ctw Lab Created Diamonds set in Platinum Emerald Three Stone Diamond Engagement Ring (Main View)

yellow gold three stone emerald cut lab diamond engagement ring ada diamonds design ad 114 on model

Platinum & Yellow Gold Emerald Three Stone Diamond Engagement Ring featuring 3.0 ctw Diamonds (Main View)

Platinum 3 Carat Emerald Cut Lab Diamond Three Stone Engagement Ring Ada Diamonds Design AD-114 Macro

Yellow Gold Emerald Three Stone Setting featuring 2.25 Carat Lab Diamonds (Main View)

Yellow Gold Emerald Three Stone Setting featuring 2.25 Carat Lab Diamonds (Profile View)

Platinum Emerald Three Stone Setting featuring 1.75 ctw Lab Diamonds (Main View)

1.25ct emerald cut lab diamond in a three stone setting in  yellow gold

1.25ct lab grown emerald cut diamond with emerald side stones set in 14k yellow gold

1.5ct emerald cut in yellow gold three stone

platinum emerald cut lab diamond three stone engagement ring

2.25ct emerald lab grown diamond ring with emerald side stones in yellow gold

Platinum 3ct Emerald Cut Lab Diamond Three Stone Ring Ada Diamonds Design AD-144 on Model

3.5 carat lab grown emerald diamond three stone ring in two tone yellow gold and platinum ada diamonds design ad 114

3.25ct lab grown emerald diamond three stone ring

Emerald Setting Lab Created Diamond Wedding Ring On Model AD114

14k Yellow Gold 2.5 Carat Emerald Cut Three Stone Lab Diamond Engagement Ring Ada Diamonds Design AD-114 Profile View on Model

1.75 Carat Lab Diamonds Emerald Three Stone Setting in Yellow Gold (Main View)

3.0 ctw Lab Grown Diamonds Emerald Three Stone Setting in Platinum (Main View)

Platinum Emerald Three Stone Diamond Engagement Ring featuring 1.75 ct Diamonds (Main View)

2.2ctw Emerald Three Stone Engagement Ring in Platinum

1.75 Carat Man Made Diamonds Emerald Three Stone Setting in Platinum (Profile View)

2.2ctw Emerald Three Stone Engagement Ring in Platinum Profile View

Yellow Gold Emerald Three Stone Setting featuring 1.25 Carat Synthetic Diamonds (Main View)

2ctw Emerald Three Stone Engagement Ring in 14k Yellow Gold

Your Choice of Gold: 0.20ct Each Side Stones (~0.40ctw): $2,650 USD0.30ct Each Side Stones (~0.60ctw): $2,900 USD0.40ct Each Side Stones (~0.80ctw): $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 romantic and elegant three stone engagement ring style, this setting features a matched pair of emerald cut lab grown diamond side stones. Available in trellis or basket style.

Emerald Three Stone 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.