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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.

2.0 ctw Diamonds set in Platinum Split Shank Solitaire (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

Trellis Split Shank Setting

Lab Diamonds set in White Gold Split Shank Solitaire Diamond Engagement Ring (Main View)

Diamonds set in White Gold Split Shank Solitaire Diamond Engagement Ring (Profile View)

Lab Diamonds Split Shank Solitaire in White Gold (Side View)

Hand Selected Diamonds Split Shank Solitaire in Yellow Gold (Main View)

Exceptional Quality Man Made Diamonds set in Yellow Gold Split Shank Solitaire Diamond Engagement Ring (Main View)

Synthetic Diamonds Split Shank Solitaire in Rose Gold (Main View)

Diamonds Split Shank Solitaire in Rose Gold (Main View)

platinum 2.5ct round split shank solitaire engagement ring with lab diamond ada diamonds design ad 338 macro

18k white gold 2.5ct round lab diamond split shank solitaire engagement ring ada diamonds design ad 338 side view

1.5 Carat Synthetic Diamonds Split Shank Solitaire in Platinum (Main View)

yellow gold 1.75ct oval split shank solitaire engagement ring ada diamonds design ad 338 macro

14k yellow gold 1.75 ct oval man made diamond in split shank solitaire engagement ring ada diamonds design ad 338 profile view

Platinum Pear Split Shank Solitaire featuring Exceptional Quality 2.0 ctw Man Made Diamonds (Main View)

2.0 Carat Man Made Diamonds set in Platinum Split Shank Solitaire Diamond Engagement Ring (Side View)

2.25 Carat Man Made Diamonds set in Platinum Split Shank Solitaire Diamond Engagement Ring (Profile View)

18k Yellow Gold 2 Carat Cushion Cut Lab Diamond Split Shank Solitaire Ada Diamonds Design AD-338 Macro

18k Yellow Gold 2 Carat Cushion Cut Lab Diamond Split Shank Solitaire Ada Diamonds Design AD-338 Profile

1.75ct oval lab diamond in split shank solitaire setting in yellow gold

High Quality 1.75 Carat Oval Lab Diamond set in Platinum Split Shank Solitaire (Main View)

Platinum Oval Split Shank Solitaire Diamond Engagement Ring featuring Exceptional Quality 1.75 Carat Diamonds (Side View)

1.75ct oval lab diamond split shank solitaire engagement ring ada diamonds design ad 338

yellow gold split shank solitaire with lab created oval diamond

18k Yellow Gold Four Carat Pear Lab Diamond Split Shank Solitaire Engagement Ring Ada Diamonds Design AD-338 Profile

Yellow Gold Split Shank Solitaire Diamond Engagement Ring featuring Hand Selected 2.0 Carat Lab Diamonds (Main View)

2.0 Carat Synthetic Diamonds Split Shank Solitaire in Yellow Gold (Profile View)

18 Karat Yellow Gold Split Shank Solitaire Diamond Engagement Ring featuring High Quality 2.5 Carat Lab Created Diamonds

18k Yellow Gold Split Shank Solitaire Diamond Engagement Ring featuring 2.5 ctw Diamonds (Profile View)

Yellow Gold Split Shank Solitaire Diamond Engagement Ring featuring Exceptional Quality 2.0 ctw Created Diamonds (Main View)

Hand Selected 2.0 ct Diamonds Split Shank Solitaire Diamond Engagement Ring in Yellow Gold (Side View)

White Gold 1.5ct Round Split Shank Solitaire Lab Diamond Ring Ada Diamonds Design AD-338 in Box

Platinum Split Shank Solitaire Diamond Engagement Ring featuring 1.75 ctw Diamonds (Side View)

1.25 Carat Diamonds set in 14k Yellow Gold Split Shank Solitaire (Main View)

1.25 Carat Lab Diamonds set in Yellow Gold Split Shank Solitaire Diamond Engagement Ring

1.5 ct Created Diamonds set in Platinum Split Shank Solitaire Diamond Engagement Ring (Main View)

14k yellow gold 2.5ct emerald cut lab diamond split shank solitaire engagement ring ada diamonds design ad 338

yellow gold 2.5 carat emerald cut split shank lab diamond engagement ring ada diamonds design ad338

platinum 1.75ct asscher lab diamond split shank solitaire engagement ring by ada diamonds design ad 338 macro

1.75 carat asscher lab diamond platinum split shank solitaire engagement ring

14k yellow gold 1.75ct man made diamond split shank solitaire engagement ring ada diamonds design ad 338 macro

3.0 ct Lab Diamonds Split Shank Solitaire in Yellow Gold (Main View)

3.0 Carat Lab Diamonds Split Shank Solitaire in Yellow Gold (Profile View)

High Quality 2.75 Carat Diamonds set in Platinum Split Shank Solitaire (Main View)

2.75 Carat Diamonds set in Platinum Split Shank Solitaire Diamond Engagement Ring (Side View)

platinum oval split shank lab grown diamond solitaire engagement ring ada diamonds design ad 338 on model

1.25ct lab created pear diamond in split shank yellow gold solitaire

1.5ct round lab diamond in split shank solitaire setting

1.5ct oval lab diamond in split shank platinum solitaire

1.75ct round lab diamond in split shank solitaire setting

yellow gold 1.75 ct oval lab diamond in split shank solitaire ada diamonds design ad 338 on model

yellow gold emerald cut split shank lab diamond solitaire engagement ring ada diamonds design ad 338 on model

platinum 2 ct asscher cut lab diamond split shank solitaire engagement ring platinum ada diamonds design ad 338 on model

2.0 ct Lab Diamonds Split Shank Solitaire Diamond Engagement Ring in Yellow Gold (Main View)

Yellow Gold Split Shank Solitaire featuring 2.0 ctw Created Diamonds ()

18k Yellow Gold Split Shank Solitaire Diamond Engagement Ring featuring 2.0 Carat Lab Grown Diamonds (Main View)

2.0 Carat Lab Diamonds set in Platinum Split Shank Solitaire (Main View)

2.25ct oval lab diamond in split shank solitaire setting

platinum 2.25ct pear split shank lab diamond solitaire white gold ada diamonds design ad 338 on model

platinum 2.5 carat round lab diamond in split shank solitaire engagement ring ada diamonds design ad 338 on model

14k yellow gold 2.5 carat emerald cut split shank lab diamond solitaire engagement ring ada diamonds design ad 338 on model

2.5 Carat Lab Created Diamonds set in 18k Yellow Gold Split Shank Solitaire Diamond Engagement Ring (Main View)

2.5ct pear lab diamond in split shank solitaire setting

2.75ct radiant lab diamond in split shank solitaire setting

3ct round lab diamond in split shank solitaire setting

3.0 ctw Diamonds Split Shank Solitaire Diamond Engagement Ring in Yellow Gold (Main View)

3.0 Carat Lab Grown Diamonds Split Shank Solitaire Diamond Engagement Ring in Yellow Gold (Side View)

yellow gold oval split shank lab diamond solitaire engagement ring with wedding band ada diamonds design ad 083 and ad 338 on model

platinum 1.5ct round split shank solitaire engagement ring

1.5ct Round Split Shank Solitaire Engagement Ring in Platinum

High Quality 1.5 ct Lab Created Diamonds Split Shank Solitaire in Platinum (Profile View)

1.5ct Round Split Shank Solitaire Engagement Ring in Platinum Profile View

2.5 Carat Diamonds Split Shank Solitaire Diamond Engagement Ring in Yellow Gold (Main View)

2.5ct Radiant Split Shank Solitaire in 18k Yellow Gold

High Quality 1.75 Carat Lab Diamonds set in Platinum Split Shank Solitaire (Main View)

1.75ct Asscher Split Shank Solitaire Engagement Ring in Platinum

1.5 Carat Oval Lab Diamonds set in Platinum Split Shank Solitaire (Main View)

1.5ct Oval Split Shank Solitaire Engagement Ring in Platinum

Your Choice of Gold: $1,350 USD Platinum &amp; Two-Tone: $1,600 USD Pricing is for setting only - center stone priced separately. Add a hidden halo for $500 USD.

A unique and special style showcasing a solitaire band with a split. Customize your lab diamond solitaire engagement ring with band widths of 1.8-2.5mm. 

Split Shank Solitaire

Custom made-to-order round solitaire 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.