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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.

1.5 Carat Lab Diamonds set in Rose Gold Infinity Twist Diamond Engagement Ring (Main View)

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

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White Gold Infinity Twist Setting featuring High Quality Man Made Diamonds (Main View)

White Gold Infinity Twist Diamond Engagement Ring featuring Hand Selected Lab Diamonds (Profile View)

Hand Selected Diamonds set in White Gold Infinity Twist Diamond Engagement Ring (Side View)

Yellow Gold Infinity Twist Setting featuring Lab Diamonds (Main View)

Lab Grown Diamonds Infinity Twist Diamond Engagement Ring in Yellow Gold (Main View)

Created Diamonds set in Rose Gold Infinity Twist Setting (Main View)

Rose Gold Infinity Twist Diamond Engagement Ring featuring Diamonds (Main View)

Platinum & Yellow Gold Infinity Twist Diamond Engagement Ring featuring Diamonds (Main View)

Platinum & Yellow Gold Infinity Twist Setting featuring Lab Diamonds (Profile View)

Lab Diamonds set in Platinum & Yellow Gold Infinity Twist Diamond Engagement Ring (Profile View)

Platinum & Rose Gold Infinity Twist Diamond Engagement Ring featuring Hand Selected Diamonds (Main View)

Lab Grown Diamonds set in Platinum & Rose Gold Infinity Twist Diamond Engagement Ring (Profile View)

Exceptional Quality Diamonds Infinity Twist Diamond Engagement Ring in Platinum & Rose Gold (Main View)

Hand Selected Created Diamonds Infinity Twist Diamond Engagement Ring in Platinum & Rose Gold (Profile View)

Infinity Twist Setting Lab Diamond Engagement Ring Rendering In Front View Design AD154

Infinity Twist Setting Lab Diamond Engagement Ring Rendering In Profile View Design AD154

Infinity Twist Setting Lab Diamond Engagement Ring Rendering In Side View Design AD154

Platinum Infinity Twist Diamond Engagement Ring featuring 2.75 ct Created Diamonds (Side View)

Platinum Infinity Twist Setting featuring 1.75 ct Lab Diamonds (Main View)

2.75 ctw Lab Diamonds set in Platinum Infinity Twist Setting (Main View)

platinum 2 ct lab diamond engagement ring with twisting diamond band ada diamonds design ad 154 macro

Platinum Infinity Twist Setting featuring 2.0 Carat Lab Created Diamonds (Profile View)

platinum two carat round laboratory grown diamond engagement ring with twisting diamond band ada diamonds design ad 154

2.0 ct Diamonds set in Platinum Infinity Twist Diamond Engagement Ring (Main View)

2.0 ct Diamonds set in White Gold Infinity Twist Setting (Profile View)

1.75 Carat Diamonds set in Platinum Infinity Twist Diamond Engagement Ring (Side View)

1.75 Carat Man Made Diamonds set in Platinum Infinity Twist Diamond Engagement Ring (Main View)

18k White Gold 1.25 Carat Round Lab Diamond Infinity Twist Band Engagement Ring Ada Diamonds Design AD-154

1.25 ctw Diamonds set in Platinum Infinity Twist Setting (Side View)

18k White Gold 1 Carat Round Lab Diamond Infinity Twist Band Engagement Ring Ada Diamonds Design AD-154 Floral Background

18k White Gold 1 Carat Round Lab Diamond Infinity Twist Band Engagement Ring Ada Diamonds Design AD-154 Profile

twisting band lab diamond engagement ring in rose gold

Rose Gold Infinity Twist Diamond Engagement Ring featuring 1.5 ctw Lab Created Diamonds (Side View)

Exceptional Quality 1.5 Carat Synthetic Diamonds Infinity Twist Setting in Rose Gold (Profile View)

2.5 ct Diamonds set in Platinum Infinity Twist Diamond Engagement Ring (Main View)

platinum 2.5ct oval lab diamond engagement ring with infinity twist band ada diamonds design ad 154 macro

profile view of platinum 2.5ct oval lab diamond engagement ring with infinity twist diamond band ada diamonds design ad 154

Platinum Infinity Twist Diamond Engagement Ring featuring 1.5 ct Diamonds (Main View)

Platinum Infinity Twist Diamond Engagement Ring featuring Exceptional Quality 1.5 ct Synthetic Diamonds (Side View)

Infinity Twist Setting Lab Grown Diamond Engagement Ring In Yellow Gold In Box AD154

2.0 ct Lab Created Diamonds set in Platinum Infinity Twist Setting (Profile View)

platinum 2 carat asscher cut lab diamond engagement ring with twisting diamond band ada diamonds design ad 154

custom rose gold twisted band engagement with man made diamonds

1.25 Carat Diamonds Infinity Twist Diamond Engagement Ring in White Gold (Main View)

1.5 Carat Lab Grown Diamonds set in Platinum & Yellow Gold Infinity Twist Setting (Main View)

Custom Infinity Twist Lab Diamond Engagement Ring Ada Diamonds AD-154

Rose Gold Infinity Twist Diamond Engagement Ring featuring 1.0 Carat Diamonds (Main View)

platinum 1.25ct round lab diamond engagement ring with open twisting diamond band ada diamonds design ad 154

14k yellow gold 1.5 ct round lab diamond twisting band engagement ring ada diamonds design ad 154 on model

1.5 ctw Lab Diamonds Infinity Twist Setting in Rose Gold (Main View)

1.5ct oval lab diamond in two-tone twsting setting

1.5 ctw Man Made Diamonds Infinity Twist Setting in Rose Gold (Main View)

1.5ct pear lab diamond in twisting white gold setting

1.75ct round lab diamond in twisting setting

Platinum Infinity Twist Setting featuring 2.0 ct Lab Diamonds (Main View)

platinum 2 carat asscher cut lab diamond engagement ring with twisting diamond band ada diamonds design ad 154 on model

2ct pear lab diamond in rose gold twisting setting

platinum 2.5 ct oval lab diamond engagement ring alternating twisting diamond band ada diamonds design ad 154

2.75 Carat Lab Diamonds set in Infinity Twist Setting (Main View)

platinum 1.25 ct round man made diamond in open twisting diamond band engagement ring ada diamonds design ad 154 on model

Platinum Infinity Twist Setting featuring 2.75 Carat Diamonds (Side View)

2.0 Carat Created Diamonds set in Platinum Infinity Twist Diamond Engagement Ring (Main View)

2ctw Round Infinity Closed Twist Engagement Ring in Platinum

Exceptional Quality 2.0 Carat Diamonds set in Platinum Infinity Twist Setting (Profile View)

2ctw Round Infinity Closed Twist Engagement Ring in Platinum Profile View

1.5 Carat Diamonds Infinity Twist Diamond Engagement Ring in Rose Gold (Main View)

1.75ctw Round Infinity Open Twist Engagement Ring in 18k Rose Gold

2.5 ct Lab Diamonds Infinity Twist Setting in Platinum (Main View)

2.5ctw Oval Open Infinity Twist Engagement Ring in Platinum

Platinum Infinity Twist Diamond Engagement Ring featuring 1.5 ct Lab Diamonds (Main View)

1.75ctw Pear Closed Infinity Twist Engagement Ring in Platinum

Hand Selected 2.0 ct Diamonds Infinity Twist Setting in Platinum (Main View)

2ctw Asscher Infinity Closed Twist Engagement Ring in Platinum

Your Choice of Gold: 1.1mm Side Stones (0.20ctw): $2,700 USD 1.2mm Side Stones (0.25ctw): $2,750 USD 1.3mm Side Stones (0.30ctw): $2,800 USD   Starting at price is for the setting only (center stone priced separately) and includes DEF/VS lab grown diamonds set in eternity coverage. Platinum &amp; two-tone available for an additional $300 fee. Add a hidden halo for $500. Total carat weights are approximate.

Love knows no bounds with this beautiful twisting diamond band featuring overlapping bands of metal and manmade diamonds. This setting features petite prongs and a thin support band for maximum light exposure. This ring style has limited re-sizing potential and it is recommended to size up one quarter size.

Twist Pavé

Infinity Twist Setting

Diamond Twist

Custom made-to-order diamond band 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.