White Default Shadow

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.

Emerald and Trapezoid 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

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 Trapezoid Setting

White Gold Emerald and Trapezoid Diamond Engagement Ring featuring Lab Created Diamonds (Main View)

Lab Diamonds Emerald and Trapezoid Diamond Engagement Ring in White Gold (Profile View)

White Gold Emerald and Trapezoid Diamond Engagement Ring featuring Synthetic Diamonds (Side View)

Diamonds set in Yellow Gold Emerald and Trapezoid Diamond Engagement Ring (Main View)

Lab Diamonds Emerald and Trapezoid Diamond Engagement Ring in Yellow Gold (Main View)

Rose Gold Emerald and Trapezoid Setting featuring Lab Diamonds (Main View)

Lab Diamonds Emerald and Trapezoid Diamond Engagement Ring in Rose Gold (Main View)

Exceptional Quality Synthetic Diamonds Emerald and Trapezoid Setting in Platinum & Yellow Gold (Main View)

Platinum & Yellow Gold Emerald and Trapezoid Diamond Engagement Ring featuring Lab Grown Diamonds (Profile View)

Diamonds set in Platinum & Yellow Gold Emerald and Trapezoid Setting (Profile View)

Diamonds set in Platinum & Rose Gold Emerald and Trapezoid Setting (Main View)

Platinum & Rose Gold Emerald and Trapezoid Setting featuring Man Made Diamonds (Profile View)

Platinum & Rose Gold Emerald and Trapezoid Setting featuring Created Diamonds (Main View)

Hand Selected Diamonds set in Platinum & Rose Gold Emerald and Trapezoid Diamond Engagement Ring (Profile View)

Platinum Emerald and Trapezoid Setting featuring 4.0 ctw Lab Grown Diamonds (Main View)

4.0 Carat Created Diamonds set in Platinum Emerald and Trapezoid Diamond Engagement Ring (Side View)

14k white gold emerald cut and trapezoid side stone ring with lab diamonds

3.5 ct Man Made Diamonds set in Platinum & Yellow Gold Emerald and Trapezoid Setting (Profile View)

ring with 2 ct lab grown emerald diamond and trapezoid side stones

2.0 Carat Lab Diamonds set in Yellow Gold Emerald and Trapezoid Setting (Main View)

Exceptional Quality 2.0 ctw Lab Created Diamonds set in Yellow Gold Emerald and Trapezoid Setting (Profile View)

2.0 Carat Diamonds set in Platinum & 14 Karat Yellow Gold Emerald and Trapezoid Setting (Main View)

Synthetic Diamonds set in Emerald and Trapezoid Diamond Engagement Ring

platinum emerald and trapezoid engagement ring with lab made diamonds

platinum emerald and trapezoid ring with lab grown diamonds

custom three stone ring with lab grown diamonds

emerald cut lab grown diamond center stone with trapezoid side stones

engagement ring with 3 carat lab grown emerald cut diamond and trapezoid side stones

platinum three stone emerald and trap ring with lab grown diamonds

custom emerald cut lab grown diamond with trapezoid side stones

yellow gold three stone emerald and trap ring with lab made diamonds

14k yellow gold 3 ct emerald cut lab diamond engagement ring with trapezoid side stones ada diamonds design ad 465 macro

14k yellow gold 3 ct emerald cut lab created diamond and trapezoid three stone engagement ring ada diamonds design ad 465 profile

2.25 Carat Diamonds set in Yellow Gold Emerald and Trapezoid Setting (Main View)

14k yellow gold 4 carat emerald cut and trapezoid lab diamond three stone engagement ring ada diamonds design ad 465 macro

High Quality 2.75 ctw Lab Diamonds set in Platinum & Yellow Gold Emerald and Trapezoid Diamond Engagement Ring (Main View)

two-tone emerald and trapezoid three stone ring

3.25 ct Diamonds set in Platinum Emerald and Trapezoid Setting (Main View)

Hand Selected 3.0 Carat Lab Diamonds Emerald and Trapezoid Diamond Engagement Ring in Platinum (Profile View)

4ct emerald cut and trapezoid lab diamond engagement ring with wedding band in platinum ada diamonds design ad 465 and ad236

1.5ct lab grown emerald cut diamond and trapezoid side stones

18k yellow gold 2.5 carat emerald cut and trapezoid three stone lab diamond engagement ring ada diamonds design ad 465 on model

2 ct lab made emerald cut diamond and trapezoid side stones

2.25 Carat Synthetic Diamonds Emerald and Trapezoid Diamond Engagement Ring in Yellow Gold (Main View)

Platinum Emerald and Trapezoid Diamond Engagement Ring featuring 2.5 ct Lab Diamonds (Main View)

lab created three stone engagement ring with 3ct emerald cut

2.75 carat lab grown emerald cut diamond ring with trapezoid side stones in platinum setting

2.75 carat lab grown emerald cut diamond ring with trapezoid side stones in white gold setting

Yellow Gold Emerald and Trapezoid Setting featuring Exceptional Quality 2.75 ct Lab Grown Diamonds (Main View)

3ct lab created emerald cut diamond ring with trapezoid side stones in 14k yellow gold setting

14k yellow gold 3ct emerald cut lab grown diamond with trapezoid side stones ada diamonds design ad 465 on model

3.5 carat labratory grown emerald cut diamond engagement ring with trap side stones in custom platinum setting

platinum 5ct emerald cut and trapezoid three stone lab diamond engagement ring ada diamond design ad 465 on model

4.5ct emerald lab diamond with trap side stones

Yellow Gold Emerald and Trapezoid Diamond Engagement Ring featuring Exceptional Quality 2.25 ct Lab Diamonds (Main View)

14k yellow gold 2.5ct emerald cut and trapezoid three stone engagement ring with lab diamonds ada diamonds design ad 465 profile on hand

2.0 ctw Lab Diamonds set in Platinum & Yellow Gold Emerald and Trapezoid Setting (Profile View)

Platinum Emerald and Trapezoid Setting featuring 2.5 ct Diamonds (Main View)

3.1ctw Emerald and Trapezoid Three Stone Engagement Ring in Platinum

2.5 ctw Diamonds Emerald and Trapezoid Setting in Platinum (Profile View)

3.1ct Emerald and Trapezoid Three Stone Engagement Ring in Platinum Profile View

2.75 ct Lab Created Diamonds set in Yellow Gold Emerald and Trapezoid Setting (Main View)

3.25ctw Emerald Cut and Trapezoid Three Stone Engagement Ring in 14k Yellow Gold

Your Choice of Gold: 0.20ct Each Side Stones (~0.40ctw): $2,650 USD0.25ct Each Side Stones (~0.50ctw): $2,750 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. Platinum and two-tone available for an additional $300 fee. Subject to availability; all side stone weights and measurements are approximate.

A modern three stone engagement ring setting, featuring a pair of step cut trapezoid lab grown diamond side stones in a basket or trellis style.

Emerald and Trapezoid Setting

Three Stone Basket

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.