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Big News: Ada Diamonds Joins the Sasha Primak Family

We are excited to announce that Ada Diamonds has joined Sasha Primak, a luxury jewelry manufacturer based in New York. For years, Sasha Primak has been a trusted partner of Ada Diamonds, crafting many of the exquisite pieces Ada customers wear today.We have the utmost respect for Ada’s founders and are committed to preserving their legacy, values, and the integrity of the Ada brand. Our dedication to exceptional quality, craftsmanship, and innovation remains unchanged.Ada Diamonds' showroom will be relocating to our state-of-the-art 5th Avenue facility, where customers will continue to enjoy the curated luxury experience they love. Visitors will also have the unique opportunity to see master artisans at work, bringing their jewelry dreams to life from start to finish.For any questions regarding past purchases, warranties, or future custom jewelry inquiries, please contact <a href="mailto:concierge@adadiamonds.com">concierge@adadiamonds.com</a>.Stay tuned for more exciting updates as we continue to create exquisite, high-quality jewelry for our valued customers.

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.

Terms &amp; Conditions:<ul><li>Discount applies to select styles only.</li><li>This offer does not apply to custom-designed jewelry or settings.</li><li>A full diamond purchase is required to qualify for the discount; deposits (20%) are excluded.</li><li>Settings are eligible for a discount only with the purchase of a diamond.</li><li>Offer is valid for new purchases only and does not apply to previous transactions.</li><li>This promotion is available for a limited time and may be withdrawn at any time without notice.</li><li>This offer cannot be combined with any other promotions, discounts, or special offers.</li></ul>

Terms &amp; Conditions:<ul><li>Discount applies to select styles only.</li><li>This offer does not apply to custom-designed jewelry or settings.</li><li>Offer is valid for new purchases only and does not apply to previous transactions.</li><li>This promotion is available for a limited time and may be withdrawn at any time without notice.</li><li>This offer cannot be combined with any other promotions, discounts, or special offers.</li></ul>

2.0 Carat Lab Diamonds set in Yellow Gold Round Three Stone Diamond Engagement Ring (Main View)

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

Cushion and Round Setting

Oval and Round Setting

Lab Diamonds set in White Gold Round Three Stone Diamond Engagement Ring (Main View)

Lab Diamonds Round Three Stone Diamond Engagement Ring in White Gold (Profile View)

Lab Diamonds Round Three Stone Diamond Engagement Ring in White Gold (Side View)

Hand Selected Diamonds Round Three Stone Diamond Engagement Ring in Yellow Gold (Main View)

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

High Quality Created Diamonds Round Three Stone Diamond Engagement Ring in Rose Gold (Main View)

Lab Created Diamonds Round Three Stone Diamond Engagement Ring in Rose Gold (Main View)

platinum 3.5 ct round lab diamond three stone ring ada diamonds design ad 070

platinum 3.5 carat round lab created diamond three stone engagement ring ada diamonds design ad 070

3.0 ctw Diamonds set in White Gold Round Three Stone Diamond Engagement Ring (Main View)

2.0 ct Diamonds set in Platinum Round Three Stone Diamond Engagement Ring (Main View)

1.5 Carat Lab Grown Diamonds Round Three Stone Diamond Engagement Ring in Yellow Gold (Main View)

1.5 ct Lab Diamonds Round Three Stone Setting in Yellow Gold (Profile View)

Yellow Gold Round Three Stone Setting featuring 3.0 Carat Synthetic Diamonds (Side View)

1.5 Carat Diamonds Round Three Stone Diamond Engagement Ring in Yellow Gold (Main View)

platinum four carat round three stone lab diamond engagement ring ada diamonds design ad 070

platinum round 2.5ct lab diamond engagement ring with round side stones ada diamonds design ad 070

Round Three Stone Lab Diamond Engagement Ring Design AD-070

Platinum 2.25 Carat Three Stone Engagement Ring with Round Brilliant Lab Created Diamonds Ada Diamonds Design AD-070

White Gold Round Three Stone Diamond Engagement Ring featuring High Quality 1.0 ct Lab Diamonds (Main View)

Yellow Gold Round Three Stone Setting featuring 1.5 Carat Diamonds (Main View)

Platinum 2.25ct Round Brilliant Three Stone Engagement Ring with Lab Diamonds Ada Diamonds Design AD-070

Platinum Round Three Stone Diamond Engagement Ring featuring 1.75 Carat Lab Diamonds (Main View)

Trellis Platinum Round Three Stone Lab Diamond Engagement Ring Ada Diamonds Design AD-070

14 Karat Yellow Gold Round Three Stone Lab Created Diamond Engagement Ring Yellow Gold Ada Diamonds Design AD-070

Platinum Round Three Stone Diamond Engagement Ring featuring 1.25 ct Diamonds (Main View)

round man made diamonds in a three stone engagement ring set in 18k white and yellow gold Ada Diamonds Design AD-070

Hand Selected 2.25 Carat Synthetic Diamonds Round Three Stone Setting in Platinum & Yellow Gold (Profile View)

1.5 ct Lab Diamonds Round Three Stone Setting in Rose Gold (Main View)

18k Rose Gold Three Stone Round Engagement Ring With Lab Grown Diamonds Ada Diamonds Design Number AD-070 Artistic Profile photo of ring

Two Tone White and Yellow Gold 1.5 Carat Round Lab Diamond Engagement Ring Ada Diamonds Design AD-070 Artistic Image

2.0 ct Diamonds Round Three Stone Setting in Platinum (Profile View)

Hand Selected 2.5 Carat Diamonds Round Three Stone Setting in Platinum (Main View)

Exceptional Quality 1.5 Carat Synthetic Diamonds set in Platinum Round Three Stone Setting (Main View)

platinum 1 ct round three stone lab diamond trellis engagement ring ada diamonds design ad 070

1 carat man made diamond in a 14k yellow gold round three stone setting on model Ada Diamonds design AD-070

excellent round 1.25 carat lab diamond ring with matching round side stones set in 14k white gold shown on model. Ada Diamonds Design AD070

yellow gold 2 ct round three stone lab diamond engagement ring ada diamonds design ad070 on model

yellow gold 2.25ct round three stone lab diamond engagement ring ada diamonds design number ad 070

classic 2-tone setting with 1.5ct lab grown diamond center stone accompanied by round side stones. Ada Diamonds Design AD-070

Platinum 2.25ct Round Three Stone Lab Created Diamond Engagement Ring Ada Diamonds Design AD-070 on Hand

lab created three stone engagement ring set in 14 karat white gold with a 2 carat center stone pictured on hand ada diamonds design ad-070

2.25 carat round three stone lab grown diamond engagement ring in 18 karat yellow gold on hand Ada Diamonds design AD-070

Platinum Three Stone Engagement Ring with 2.5 Carat Round Lab Diamond Ada Diamonds Design Number AD-070 on Model

2.5 Carat Diamonds Round Three Stone Diamond Engagement Ring in Platinum (Main View)

ideal round 3 carat lab grown diamond with round side stones on model Ada Diamonds Design AD-070

18k white gold ideal round 3 carat lab grown diamond with round side stones on model Ada Diamonds Design AD-070

trellis basket on three stone engagement ring

Diamonds set in Platinum Round Three Stone Setting

platinum 2 carat round three stone lab diamond ring with matching prong set Lab grown Diamond Wedding Band Ada Diamonds Design AD-070 and AD-071 on Model photograph

Three Stone Round Setting Lab Grown Diamond Engagement Ring Paired with a Laboratory Grown Shared Prong Wedding Band. On Model photo AD070

White Gold Round Three Stone Diamond Engagement Ring featuring 3.0 Carat Lab Diamonds (Main View)

3.5ctw Round Three Stone Engagement Ring in 18k White Gold

Exceptional Quality 3.0 ct Diamonds Round Three Stone Setting in White Gold (Profile View)

Yellow Gold Round Three Stone Diamond Engagement Ring featuring 1.5 ct Lab Diamonds (Main View)

2.5ctw Round Three Stone Engagement Ring in 14k Yellow Gold

Rose Gold Round Three Stone Setting featuring 1.5 ct Lab Created Diamonds (Main View)

1.75ctw Round Three Stone Engagement Ring in 18k 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.

Round Three Stone Setting

Three Stone Trellis

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 New York and Austin TX.