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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.

Not sure what style your sweetheart desires? Ensure your proposal is a complete surprise! A non-customized version of this setting qualifies for our <a href="/proposal-settings">Proposal Setting program</a>.

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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_!

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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

Round Petite Four Prong Solitaire

Asscher Petite Four Prong Solitaire

Cushion Petite Four Prong Solitaire

Emerald Petite Four Prong Solitaire

Oval Petite Four Prong Solitaire

Pear Petite Solitaire

Princess Petite Four Prong Solitaire

Radiant Petite Four Prong Pavé Setting

Synthetic Diamonds set in White Gold Radiant Petite Four Prong Solitaire Diamond Engagement Ring (Main View)

Exceptional Quality Diamonds set in White Gold Radiant Petite Four Prong Solitaire (Profile View)

White Gold Radiant Petite Four Prong Solitaire Diamond Engagement Ring featuring Lab Diamonds (Side View)

Yellow Gold Radiant Petite Four Prong Solitaire Diamond Engagement Ring featuring Lab Diamonds (Main View)

Man Made Diamonds set in Yellow Gold Radiant Petite Four Prong Solitaire (Main View)

Rose Gold Radiant Petite Four Prong Solitaire featuring Exceptional Quality Lab Diamonds (Main View)

High Quality Lab Grown Diamonds Radiant Petite Four Prong Solitaire in Rose Gold (Main View)

Platinum & Yellow Gold Radiant Petite Four Prong Solitaire Diamond Engagement Ring featuring Lab Diamonds (Main View)

Diamonds Radiant Petite Four Prong Solitaire Diamond Engagement Ring in Platinum & Yellow Gold (Profile View)

Diamonds set in Platinum & Yellow Gold Radiant Petite Four Prong Solitaire (Profile View)

Lab Diamonds Radiant Petite Four Prong Solitaire in Platinum & Rose Gold (Main View)

Platinum & Rose Gold Radiant Petite Four Prong Solitaire Diamond Engagement Ring featuring Diamonds (Profile View)

Platinum & Rose Gold Radiant Petite Four Prong Solitaire featuring Lab Grown Diamonds (Main View)

Man Made Diamonds Radiant Petite Four Prong Solitaire Diamond Engagement Ring in Platinum & Rose Gold (Profile View)

yellow Gold 3 Carat Radiant Lab Diamond Solitaire with 3ct Oval Wedding Band Ada Diamonds Design AD-250 Macro

platinum and yellow gold 3.75 ct radiant cut lab diamond solitaire engagement ring ada diamonds design ad 250 macro

custom platinum and yellow gold two tone 3.75ct radiant cut petite solitaire engagement ring ada diamonds design ad 250 profile

2.5 ct Diamonds set in Platinum & Yellow Gold Radiant Petite Four Prong Solitaire (Main View)

2.25 ct Lab Diamonds Radiant Petite Four Prong Solitaire Diamond Engagement Ring in (Side View)

14k Rose Gold Radiant Cut Lab Diamond Wedding Set with 3/4 Eternity Band Ada Diamonds Design AD-250 Profile View

two tone yellow gold and platinum 2.76ct radiant cut lab diamond engagement ring ada diamonds design ad 250 macro

Two Tone 14k White and Yellow Gold 3 ct Radiant Cut Lab Diamond Solitaire with Hidden Halo Ada Diamonds Design AD-250

platinum radiant cut lab diamond solitaire wedding set with prong set wedding band ada diamonds design ad 250 and ad081

14k Yellow Gold 1.25 Carat Radiant Cut Lab Diamond Solitaire Engagement Ring with Diamond Gallery Ada Diamonds Design Number AD-250 on Model

Platinum 1.5ct Radiant Solitaire Engagement Ring with Lab Diamond Ada Diamonds Design AD250

1.75ct radiant cut lab diamond in rose gold solitaire

Platinum Four Prong Solitaire Engagement Ring with 2 Carat Radiant Lab Diamond Ada Diamonds Design AD250

Platinum Radiant Petite Four Prong Solitaire Diamond Engagement Ring featuring 2.25 Carat Lab Diamonds (Main View)

Radiant Petite Four Prong Solitaire featuring 2.5 ct Diamonds

2.5 Carat Radiant Solitaire Engagement Ring in White Gold on Model made with Lab Diamonds Ada Diamonds Design 250

Radiant Petite Four Prong Solitaire featuring 2.75 ctw Lab Created Diamonds

yellow gold three carat radiant cut lab diamond engagement ring in on model ada diamonds design ad 250

3.25ct radiant cut lab diamond in solitaire

3.25ct radiant cut lab diamond in petite four prong solitaire with oval eternity band

platinum  and yellow gold 3.75ct radiant cut lab created diamond solitaire engagement ring ada diamonds design ad 250 on model

4.75ct radiant cut lab diamond in solitaire

14k Rose Gold 1.75ct Radiant Cut Lab Diamond Solitaire with Hidden Halo Ada Diamonds Design AD-250 on Model

Platinum & Yellow Gold Radiant Petite Four Prong Solitaire Diamond Engagement Ring featuring High Quality 2.0 Carat Diamonds (Profile View)

4.0 ct Lab Created Diamonds Radiant Petite Four Prong Solitaire in Platinum

"4.0 ct Radiant Petite Four Prong Solitaire Diamond Engagement Ring in Platinum | Ada's Exclusive"

Radiant Petite Four Prong Solitaire Diamond Engagement Ring featuring Exceptional Quality 4.0 ct Lab Diamonds (Profile View)

Radiant Petite Four Prong Solitaire Diamond Engagement Ring: A 4.0 ct Lab Diamond Masterpiece in Platinum - Profile View

Platinum & Yellow Gold Radiant Petite Four Prong Solitaire featuring 3.75 Carat Diamonds (Main View)

"Unveiling the 3.75ct Radiant Diamond Engagement Ring in Platinum & 14k Yellow Gold | Petite Four Prong Solitaire"

2.0 Carat Diamonds set in Platinum & Yellow Gold Radiant Petite Four Prong Solitaire (Main View)

2.25ct Radiant Petite Four Prong Solitaire with Hidden Halo in 14k Yellow Gold & Platinum

Rose Gold Radiant Petite Four Prong Solitaire featuring 1.75 ctw Diamonds (Main View)

"Unveiling the 1.75ct Radiant Petite Four Prong Solitaire in 18k Rose Gold | Diamond Engagement Ring Showcase"

Rose Gold Radiant Petite Four Prong Solitaire featuring 1.75 Carat Lab Diamonds (Main View)

"1.75 Carat Radiant Diamond in 14k Rose Gold Solitaire Engagement Ring | Main View Showcase"

Your Choice of Gold: $1,250 USD Platinum &amp; Two-Tone: $1,500 USD Pricing is for setting only - center stone priced separately. Add a hidden halo for $500 USD.

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

Radiant Petite Four Prong Solitaire

Petite Solitaires

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 San Francisco, New York, and Austin TX.