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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.

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>.

<p style="--tw-backdrop-blur:;--tw-backdrop-brightness:;--tw-backdrop-contrast:;--tw-backdrop-grayscale:;--tw-backdrop-hue-rotate:;--tw-backdrop-invert:;--tw-backdrop-opacity:;--tw-backdrop-saturate:;--tw-backdrop-sepia:;--tw-blur:;--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-brightness:;--tw-contrast:;--tw-drop-shadow:;--tw-gradient-from-position:;--tw-gradient-to-position:;--tw-gradient-via-position:;--tw-grayscale:;--tw-hue-rotate:;--tw-invert:;--tw-numeric-figure:;--tw-numeric-fraction:;--tw-numeric-spacing:;--tw-ordinal:;--tw-pan-x:;--tw-pan-y:;--tw-pinch-zoom:;--tw-ring-color:rgba(59,130,246,.5);--tw-ring-inset:;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-ring-offset-width:0px;--tw-ring-shadow:0 0 #0000;--tw-rotate:0;--tw-saturate:;--tw-scale-x:1;--tw-scale-y:1;--tw-scroll-snap-strictness:proximity;--tw-sepia:;--tw-shadow-colored:0 0 #0000;--tw-shadow:0 0 #0000;--tw-skew-x:0;--tw-skew-y:0;--tw-slashed-zero:;--tw-translate-x:0;--tw-translate-y:0;-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border:0px solid rgb(229, 231, 235);box-sizing:border-box;color:rgb(41, 41, 41);font-family:__vito_823815, __vito_Fallback_823815, sans-serif;font-size:medium;font-style:normal;font-variant-caps:normal;font-variant-ligatures:normal;font-weight:400;letter-spacing:normal;margin-bottom:0px;margin-right:0px;margin-top:0px;orphans:2;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;">We proudly cast and hand-set our engagement rings in the USA to our clients' exact specifications. Our knowledgeable, yet approachable Diamond Concierge Team are happy to discuss all the options below, along with any other customizations you may seek, upon receipt of your inquiry.&nbsp;<p style="--tw-backdrop-blur:;--tw-backdrop-brightness:;--tw-backdrop-contrast:;--tw-backdrop-grayscale:;--tw-backdrop-hue-rotate:;--tw-backdrop-invert:;--tw-backdrop-opacity:;--tw-backdrop-saturate:;--tw-backdrop-sepia:;--tw-blur:;--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-brightness:;--tw-contrast:;--tw-drop-shadow:;--tw-gradient-from-position:;--tw-gradient-to-position:;--tw-gradient-via-position:;--tw-grayscale:;--tw-hue-rotate:;--tw-invert:;--tw-numeric-figure:;--tw-numeric-fraction:;--tw-numeric-spacing:;--tw-ordinal:;--tw-pan-x:;--tw-pan-y:;--tw-pinch-zoom:;--tw-ring-color:rgba(59,130,246,.5);--tw-ring-inset:;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-ring-offset-width:0px;--tw-ring-shadow:0 0 #0000;--tw-rotate:0;--tw-saturate:;--tw-scale-x:1;--tw-scale-y:1;--tw-scroll-snap-strictness:proximity;--tw-sepia:;--tw-shadow-colored:0 0 #0000;--tw-shadow:0 0 #0000;--tw-skew-x:0;--tw-skew-y:0;--tw-slashed-zero:;--tw-translate-x:0;--tw-translate-y:0;-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border:0px solid rgb(229, 231, 235);box-sizing:border-box;color:rgb(41, 41, 41);font-family:__vito_823815, __vito_Fallback_823815, sans-serif;font-size:medium;font-style:normal;font-variant-caps:normal;font-variant-ligatures:normal;font-weight:400;letter-spacing:normal;margin-bottom:0px;margin-right:0px;margin-top:0px;orphans:2;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;">Not sure exactly what you or your partner wants? No problem! Please feel free to inquire and we're happy to guide you through the process. <a style="--tw-backdrop-blur:;--tw-backdrop-brightness:;--tw-backdrop-contrast:;--tw-backdrop-grayscale:;--tw-backdrop-hue-rotate:;--tw-backdrop-invert:;--tw-backdrop-opacity:;--tw-backdrop-saturate:;--tw-backdrop-sepia:;--tw-blur:;--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-brightness:;--tw-contrast:;--tw-drop-shadow:;--tw-gradient-from-position:;--tw-gradient-to-position:;--tw-gradient-via-position:;--tw-grayscale:;--tw-hue-rotate:;--tw-invert:;--tw-numeric-figure:;--tw-numeric-fraction:;--tw-numeric-spacing:;--tw-ordinal:;--tw-pan-x:;--tw-pan-y:;--tw-pinch-zoom:;--tw-ring-color:rgba(59,130,246,.5);--tw-ring-inset:;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-ring-offset-width:0px;--tw-ring-shadow:0 0 #0000;--tw-rotate:0;--tw-saturate:;--tw-scale-x:1;--tw-scale-y:1;--tw-scroll-snap-strictness:proximity;--tw-sepia:;--tw-shadow-colored:0 0 #0000;--tw-shadow:0 0 #0000;--tw-skew-x:0;--tw-skew-y:0;--tw-slashed-zero:;--tw-translate-x:0;--tw-translate-y:0;border:0px solid rgb(229, 231, 235);box-sizing:border-box;color:inherit;text-decoration-color:inherit;text-decoration-line:underline;text-decoration-style:inherit;text-decoration-thickness:inherit;" href="/diamond-concierge-process">Learn more</a> about our engagement ring purchasing experience.

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.

Oval and Trapezoid Setting - Ada Diamonds

Read Our <a href="/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_!

emerald-eternity-band-with-lab-grown-diamonds.jpg

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

Asscher and Trapezoid Setting

Cushion and Trapezoid Setting

Emerald and Trapezoid Setting

Princess and Trapezoid Setting

Radiant and Trapezoid Setting

Oval and Half Moon Setting

Hand Selected Synthetic Diamonds set in White Gold Oval and Trapezoid Setting (Main View)

Created Diamonds set in White Gold Oval and Trapezoid Diamond Engagement Ring (Profile View)

White Gold Oval and Trapezoid Setting featuring Diamonds (Side View)

Created Diamonds Oval and Trapezoid Diamond Engagement Ring in Yellow Gold (Main View)

Yellow Gold Oval and Trapezoid Diamond Engagement Ring featuring Lab Diamonds (Main View)

Rose Gold Oval and Trapezoid Diamond Engagement Ring featuring Lab Created Diamonds (Main View)

Lab Created Diamonds set in Rose Gold Oval and Trapezoid Setting (Main View)

Diamonds Oval and Trapezoid Diamond Engagement Ring in Platinum & Yellow Gold (Main View)

Platinum & Yellow Gold Oval and Trapezoid Diamond Engagement Ring featuring Hand Selected Diamonds (Profile View)

Platinum & Yellow Gold Oval and Trapezoid Setting featuring Diamonds (Profile View)

Diamonds Oval and Trapezoid Setting in Platinum & Rose Gold (Main View)

Platinum & Rose Gold Oval and Trapezoid Setting featuring Lab Diamonds (Profile View)

Lab Grown Diamonds Oval and Trapezoid Setting in Platinum & Rose Gold (Main View)

Diamonds set in Platinum & Rose Gold Oval and Trapezoid Diamond Engagement Ring (Profile View)

platinum 2.5 ct oval lab diamond ring with trapezoid side stones ada diamonds design ad 462 macro

18k white gold 2.5 carat oval lab created  diamond three stone ring with trapezoid side stones design ad 462 profile view

2.5 carat oval and trapezoid three stone lab diamond ring white gold ada diamonds design ad 462

14k yellow gold oval and trapezoid three stone lab diamond engagement ring ada diamonds design ad 462 macro

yellow gold oval cut and trapezoid three stone lab created diamond engagement ring ada diamonds design ad 462 profile

platinum three stone engagement ring featuring 3.5ct oval and step cut trapezoid lab grown diamond side stones ada diamonds design ad-462

18k white gold engagement ring featuring 3.5ct oval and step cut trapezoid lab made diamonds ada diamonds design ad-462

yellow gold 1.25 carat oval and trapezoid three stone lab diamond engagement ring ada diamonds design ad 462 on model

platinum 2.5 carat oval and trapezoid lab diamond engagement ring white gold ada diamonds design ad 462

platinum engagement ring featuring 3.5ct oval and step cut trapezoid lab grown diamond ada diamonds design ad-462

white gold oval and trapezoid setting with a 3.5ct oval laboratory grown diamond center stone

white gold profile view of 2.5 carat oval and trapezoid three stone lab grown diamond engagement ring ada diamonds design ad 462

4 ct Oval and Trapezoid Three Stone Lab Diamond Engagement Ring in Platinum | Ada Diamonds

Oval and Trapezoid Three Stone Lab Diamond Engagement Ring in Platinum | Ada Diamonds

1.5ct Oval & Trapezoid Lab Grown Diamond Engagement Ring in 14k Yellow Gold | Ada Diamonds

Your Choice of Gold: 0.20ct Each Side Stones (~0.40ctw): $2,650 USD0.25ct Each Side Stones (~0.50ctw): $2,750 USD0.30ct Each Side Stones (~0.60ctw): $2,900 USD0.40ct Each Side Stones (~0.80ctw): $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. Platinum and two-tone available for an additional $300 fee. Subject to availability; all side stone weights and measurements are approximate.

A modern three stone engagement ring setting, featuring a pair of brilliant or step cut trapezoid lab grown diamond side stones in a basket or trellis style.