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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.

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

White Gold Oval Six Prong Solitaire Diamond Engagement Ring featuring Lab Diamonds (Main View)

Exceptional Quality Lab Diamonds set in White Gold Oval Six Prong Solitaire (Profile View)

Diamonds Oval Six Prong Solitaire Diamond Engagement Ring in White Gold (Side View)

High Quality Created Diamonds Oval Six Prong Solitaire in Yellow Gold (Main View)

Yellow Gold Oval Six Prong Solitaire featuring Man Made Diamonds (Main View)

Diamonds set in Rose Gold Oval Six Prong Solitaire Diamond Engagement Ring (Main View)

Man Made Diamonds set in Rose Gold Oval Six Prong Solitaire (Main View)

Platinum & Yellow Gold Oval Six Prong Solitaire featuring Lab Grown Diamonds (Main View)

Platinum & Yellow Gold Oval Six Prong Solitaire featuring Lab Diamonds (Profile View)

Platinum & Yellow Gold Oval Six Prong Solitaire featuring Hand Selected 2.0 ctw Lab Diamonds (Main View)

Platinum & Yellow Gold Oval Six Prong Solitaire featuring Lab Created Diamonds (Profile View)

Platinum & Rose Gold Oval Six Prong Solitaire featuring Exceptional Quality Lab Diamonds (Main View)

Hand Selected Lab Diamonds Oval Six Prong Solitaire Diamond Engagement Ring in Platinum & Rose Gold (Profile View)

Created Diamonds Oval Six Prong Solitaire in Platinum & Rose Gold (Main View)

Lab Created Diamonds Oval Six Prong Solitaire Diamond Engagement Ring in Platinum & Rose Gold (Profile View)

High Quality 2.75 ct Diamonds set in Platinum Oval Six Prong Solitaire Diamond Engagement Ring (Main View)

High Quality 2.0 Carat Man Made Diamonds Oval Six Prong Solitaire in Platinum (Main View)

Platinum Oval Six Prong Solitaire Diamond Engagement Ring featuring 2.0 Carat Lab Diamonds (Side View)

2.75 ct Diamonds set in Platinum Oval Six Prong Solitaire (Profile View)

14k Yellow Gold 2 Carat Oval Six Prong Lab Created Diamond Solitaire Ada Diamonds Design AD-145 Macro

14k Yellow Gold 2ct Oval Cut Man Made Diamond Six Prong Solitaire Engagement Ring Ada Diamonds Design AD-145 Profile

18k Yellow Gold Oval Lab Diamond Six Prong Solitaire Engagement Ring Ada Diamonds Design AD-145 Pink Background

Platinum & Yellow Gold Oval Six Prong Solitaire featuring 2.25 Carat Diamonds (Main View)

Platinum & Yellow Gold Oval Six Prong Solitaire featuring 2.5 ctw Lab Created Diamonds (Profile View)

2.25 Carat Man Made Diamonds set in Platinum & 18kt Yellow Gold Oval Six Prong Solitaire (Profile View)

yellow gold wedding set with oval six prong solitaire

1.5 Carat Diamonds set in 14 Karat Yellow Gold Oval Six Prong Solitaire (Main View)

1.75 Carat Lab Created Diamonds set in 14k Yellow Gold Oval Six Prong Solitaire (Main View)

High Quality 2.0 Carat Lab Grown Diamonds set in Platinum Oval Six Prong Solitaire Diamond Engagement Ring (Main View)

Custom 2.25 ct two tone platinum and 14k yellow gold oval six prong solitaire engagement with a lab grown diamond

2.5 ct Diamonds set in Platinum & 18k Yellow Gold Oval Six Prong Solitaire (Main View)

2.75ct oval lab diamond in six prong solitaire platinum

14k Yellow Gold 2 Carat Oval Six Prong Solitaire Lab Diamond Ring Ada Diamonds Design AD-145 Profile On Hand

2.0 ctw Lab Created Diamonds set in Platinum Oval Six Prong Solitaire (Main View)

2ct Oval Six Prong Solitaire Engagement Ring in Platinum

Hand Selected 2.0 ct Man Made Diamonds set in Platinum Oval Six Prong Solitaire (Profile View)

2ct Oval Six Prong Solitaire Engagement Ring in Platinum Profile View

2.0 ct Lab Diamonds Oval Six Prong Solitaire in Yellow Gold (Profile View)

2ct Oval Six Prong Solitaire Engagement Ring in 14k Yellow Gold

Your Choice of Gold: $1,450 USD Platinum &amp; Two-Tone: $1,700 USD Pricing is for setting only - center stone priced separately. Add a hidden halo for $500 USD.

Stunning and secure, this setting features petite prongs and a gallery wire for maximum security. Customize your lab diamond solitaire engagement ring with band widths of 1.8-2.5mm. 

Oval Six Prong Solitaire

Classic Six Prong Solitaire - Oval

Custom made-to-order solitaire 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.