Need Help?

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

May We Help You?

A Diamond Concierge is available to help you choose the best option.

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>!

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.

Not sure what she wants? We can help. Propose with a classic solitaire, and then design a custom ring together.

Proposal Settings

Floral Basket Solitaire Diamond Engagement Ring featuring Man Made Diamonds (Profile View)

Floral Basket Solitaire featuring Diamonds (Profile View)

See why real couples chose Ada to tell their love story

They Said Yes! 

At Ada Diamonds, we’re different,&nbsp;we’re better, we’re worth it. Book your complimentary consultation now

The Most Trusted Experts in Lab Diamonds

Diamonds set in Pear Petite Pavé Setting (Profile View)

Pear Petite Pavé Diamond Engagement Ring featuring High Quality Lab Diamonds (Profile View)

Ready to Begin Your Concierge Experience?

Engagement Modal Form

ER-MB-Number-0

ER-MB-Number-1

ER-MB-Number-2

ER-MB-Number-3

ER-MB-Number-4

Halo-007

Halo-009

Halo-008

Wedding Band Sitting Flush Against Engagement Ring - Design Number: AD-213

White Gold Double Sided Halo Diamond Engagement Ring featuring Exceptional Quality Diamonds (Main View)

High Quality Man Made Diamonds set in White Gold Double Sided Halo Setting (Profile View)

Lab Diamonds set in White Gold Double Sided Halo Setting (Side View)

Yellow Gold Double Sided Halo Setting featuring Lab Diamonds (Main View)

Yellow Gold Double Sided Halo Diamond Engagement Ring featuring Diamonds (Main View)

Lab Grown Diamonds set in Rose Gold Double Sided Halo Diamond Engagement Ring (Main View)

Hand Selected Lab Grown Diamonds set in Rose Gold Double Sided Halo Diamond Engagement Ring (Main View)

2.5 Carat Round Double Sided Halo Lab Diamond Engagement Ring Platinum Ada Diamonds Design AD-213

oval in double sided halo setting in platinum

Oval Double Sided Halo Lab Diamond Engagement Ring Design AD-213

Double Sided Halo Setting Lab Created Diamond Engagement Ring AD213

Double Sided Halo Pave Engagement Ring AD213

white gold 1 carat round double sided halo engagement ring featuring lab diamonds ada diamonds design ad-213 on model

platinum 1.25 carat oval lab diamond double sided halo engagement ring ada diamonds design ad-213 on hand

platinum 1.5ct radiant cut double sided halo lab diamond engagement ring ada diamonds design ad-213 on hand

white gold 1.75ct radiant cut manmade diamond double sided halo engagement ring with diamond band ada diamonds design ad-213 on model

platinum 2 carat round double sided halo engagement ring made with lab grown diamonds ada diamonds design ad-213 on model

white gold 2.5 carat oval lab created diamond with double sided halo and diamonds on the band ada diamonds design ad-213 on hand

white gold 2.5carat radiant double sided halo pavé engagement ring with man made diamonds ada diamonds design ad-213 on model

platinum 3 carat radiant lab diamond in double sided halo ring ada diamonds design ad-213 on model

3ct oval in double sided halo pave setting

Three and a Half Carat Radiant Double Sided Halo Lab Diamond Engagement Ring Platinum On Model Profile Ada Diamonds Design AD-213

Radiant Cut Lab Diamond Double Sided Halo  Engagement Ring  Ada Diamonds Design AD-213

2.0 ct Lab Grown Diamonds Double Sided Halo Setting in White Gold (Main View)

2.75ctw Round Double Sided Halo Engagement Ring in 18k White Gold

Exceptional Quality 2.0 ct Diamonds Double Sided Halo Diamond Engagement Ring in White Gold (Profile View)

Profile View of 2.71ctw Round Double Sided Halo Engagement Ring in 18k White Gold

Platinum Double Sided Halo Diamond Engagement Ring featuring 3.0 Carat Lab Diamonds (Main View)

4ctw Oval Double Sided Halo Engagement Ring in Platinum

Your Choice of Gold:  1.1mm and 0.9mm in Halo, 1.6mm on Band: $3,650 USD1.2mm and 1.0mm in Halo, 1.8mm on Band: $4,050 USD1.3mm and 1.0mm in Halo, 2.0mm on Band: $4,550 USD Starting at price is for the setting only (center stone priced separately) and includes DEF/VS lab grown diamonds set in 3/4 coverage. Platinum &amp; two-tone available for an additional $300 fee. Total carat weights are approximate.

Add endless sparkle to your center stone with Ada&#39;s Double Sided Halo Setting. Featuring a double-sided halo and lab diamonds pavé set down the band.

Pavé Standard

Double Sided Halo

Double Sided Halo Setting

Custom made-to-order halo engagement 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.

Double Sided Halo Setting

The Perfect Match

Ready to Begin Your Concierge Experience?