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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.

Custom Diamond Band Setting - Ada Diamonds

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_!

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

Custom Lab Created Diamond Engagement Ring Design-178

14k yellow gold and platinum 4ct cushion cut lab diamond twisting diamond band engagement ring ada diamonds design ad 178 macro

platinum and yellow gold 4 carat cushion cut manmade diamond twisting pavé band engagement ring ada diamonds design ad 178 profile

platinum and yellow gold four carat cushion cut engagement ring with woven diamond band featuring lab created diamonds ada diamonds design ad 178 on model

platinum custom engagement ring with 3.5ct round lab diamond and reverse tapered diamond band ada diamonds design ad 178 macro

platinum custom lab diamond engagement ring with 3.5ct round lab diamond center stone in high profile setting with reverse tapered diamond band ada diamonds design ad 178

platinum two carat lab created diamond floral inspired engagement ring with custom twisting diamond band ada diamonds design ad 178 on model

platinum 2 ct oval lab diamond engagement ring with floral basket and twisting diamond band ada diamonds design ad 178

14k yellow gold round lab diamond custom floral inspired diamond band engagement ring ada diamonds design ad 178 macro

14k yellow gold 1.5ct round lab diamond in tulip diamond band engagement ring setting ada diamonds design ad 178 on model

Platinum 2.75 Carat Round Lab Diamond Six Prong Engagement Ring with Knife Edge Micro Pave Band Ada Diamonds Design AD-178

Platinum 2.75 Carat Round Lab Diamond Six Prong Engagement Ring with Knife Edge Micro Pave Band Ada Diamonds Design AD-178 Profile View

Platinum 2.75ct Round Lab Created Diamond Six Prong Engagement Ring with Knife Edge Micro Pave Band Ada Diamonds Design AD-178 on Model

Platinum 2 Carat Round Lab Diamond Ring with Custom Open Twist Band Ada Diamonds Design AD-178 Artistic

Platinum 2 Carat Round Lab Diamond Ring with Custom Open Twist Band Ada Diamonds Design AD-178 on Model

Radiant Cut Lab Diamond By-Pass Band Engagement Ring Design AD-178

Lab Diamond Custom Diamond Band Setting In Rose Gold In Box AD178

Custom Pave Band Lab Diamond Engagement Ring Design AD-178

Manmade Diamond Custom Infinity Twist Engagement Ring On Hand Design AD178

Emerald Cut Lab Created Diamond Custom Pave Band Engagement Ring Design AD-178

Custom Miligrain Band Lab Diamond Engagement Ring Platinum AD-178

Custom 1.5 Carat Diamond Band Lab Diamond Engagement Ring Platinum AD-178

Lab Grown Diamond Custom Infinity Twist Engagement Ring In Box Design AD178

Lab Grown Diamond Custom Infinity Twist Engagement Ring On Model Design AD178

Oval Two Carat Custom Pavé Cross Band Lab Diamond Engagement Ring Ada Diamonds AD-178

Two Carat Custom Oval X Band Lab Diamond Pavé Engagement Ring Ada Diamonds AD-178

Custom X Band Lab Diamond Engagement Ring Ada Diamonds AD-179

Custom Five Prong By Pass Channel Set Lab Diamond Engagement Ring Rose Gold Ada Diamonds AD-178

Custom Twisting Pavé Band Lab Diamond Engagement Ring Ada Diamonds AD-178

Two Carat Custom Lab Diamond Ring with Pear and Marquise Diamond Band in Yellow Gold On Model Ada Diamonds Design AD-178

Two Carat Custom Lab Diamond Ring with Pear and Marquise Diamond Band in Yellow Gold Ada Diamonds Design AD-178

Custom Marquise and Round Lab Created Diamond Engagement Ring on Model Ada Diamonds AD-178

Custom Marquise and Round Lab Created Diamond Engagement Ring Ada Diamonds AD-178

Custom Three Carat Shared Prong Lab Diamond Engagement Ring Platinum Ada Diamonds AD-178

Platinum Two Carat Custom Round Lab Grown Diamond Engagement Ring with Knife Edge Micropavé Band Ada Diamonds Design AD178 on Model

Platinum 2.25 Carat Custom Round Six Prong Lab Diamond Engagement Ring with Channel Set Diamond Band Ada Diamonds Design Number AD-178 Macro Shot in Box

Platinum Custom French U Lab Diamond Six Prong Engagement Ring Ada Diamonds Design Number AD-178 in Blue Velvet Box

Platinum Custom 2.25 Carat French U Lab Diamond Six Prong Engagement Ring Ada Diamonds Design Number AD-178 Profile

14k Rose Gold Custom Twisting Band Engagement Ring and Half Eternity Band Ada Diamonds Design Number AD-178 Artistic Image

14k Rose Gold Custom Twisting Band Engagement Ring and Half Eternity Band Ada Diamonds Design Number AD-178 on Model

Platinum Vintage Inspired 2 Carat Radiant Pavé Man Made Diamond Engagement Ring Ada Diamonds Design Number 178 In Box

Platinum Vintage Inspired 2 Carat Radiant Pavé Lab Created Diamond Engagement Ring Ada Diamonds Design Number 178 on Model

Platinum Custom Floral Inspired 1 Carat Round Lab Diamond Engagement Ring Ada Diamonds Design AD-178 Artistic Shot

Platinum Custom Floral Inspired 1 Carat Round Lab Diamond Engagement Ring Ada Diamonds Design AD-178 on Model

14k Rose Gold 1.5 Carat Radiant Lab Diamond Engagement Ring with Leaf Inspired Band of Marquise and Round Lab Diamonds Ada Diamonds Design AD-178 Artistic

14k Rose Gold 1.5 Carat Radiant Lab Diamond Engagement Ring with Leaf Inspired Band of Marquise and Round Lab Diamonds Ada Diamonds Design AD-178 On Hand

14k Yellow Gold Custom 2 Carat Lab Diamond Engagement Ring with Emerald Cut, Pear, Round and Marquise Lab Diamonds Ada Diamonds Design AD-178 Artistic Image

14k Yellow Gold Custom 2 Carat Lab Diamond Engagement Ring with Emerald Cut, Pear, Round and Marquise Lab Diamonds Ada Diamonds Design AD-178 Profile View

14k Yellow Gold Custom 2 Carat Lab Diamond Engagement Ring with Emerald Cut, Pear, Round and Marquise Lab Diamonds Ada Diamonds Design AD-178 on Model

18k White Gold Custom 3 Carat Oval Lab Created Diamond Ring with Three Sided Pavé Band in 18k White Gold Ada Diamonds Design AD-178 Artistic Image

14k Rose Gold Custom 2 Carat Pear and Round Lab Diamond Wedding Set Ada Diamonds Design AD-178 in Box

14k Rose Gold Custom 2 Carat Pear and Round Lab Diamond Wedding Set Ada Diamonds Design AD-178 Profile View

14k Rose Gold Custom 2 Carat Pear and Round Lab Diamond Wedding Set Ada Diamonds Design AD-178 On Model

Platinum 3 carat Round Lab Diamond Cathedral Split Shank Pavé Engagement Ring Ada Diamonds Design AD-178 Artistic

Platinum 3ct Round Lab Diamond in Custom Split Shank Cathedral Pavé Setting Ada Diamonds Design AD-178 Profile

Platinum 3 Carat Round Lab Created Diamond in Custom Split Shank Cathedral Pavé Setting Ada Diamonds Design AD-178 on Model

Rose Gold 3.5ct Custom Oval Lab Diamond Engagement Ring with 1.6mm Pavé Band Ada Diamonds Design AD-178 Macro

14k Rose Gold Oval Lab Diamond in Custom Compass Pavé Engagement Ring Setting Ada Diamonds Design Ad-178 Profile

Rose Gold Oval Lab Diamond Engagement Ring with 1.6mm Diamond Band Ada Diamonds Design Ad-178 on Model

Rose Gold 3ct Oval Lab Diamond Ring with Marquise Band Ada Diamonds Design AD-178 Macro

Rose Gold 3ct Oval Lab Diamond Ring with Marquise Band Ada Diamonds Design AD-178 Profile

Rose Gold 3ct Oval Lab Diamond Ring with Marquise Band Ada Diamonds Design AD-178 on Model

14k Yellow Gold 1.5ct Oval Lab Diamond Ring with Diamond Accented Band Ada Diamonds Design AD-178 Macro

14k Yellow Gold 1.5ct Oval Lab Diamond Ring with Diamond Accented Band Ada Diamonds Design AD-178 on Model

Platinum Custom 2.5ct Round Lab Diamond Ring with Round and Marquise Band Ada Diamonds Design AD-178 Macro

Platinum Custom 2.5ct Round Lab Diamond Ring with Round and Marquise Band Ada Diamonds Design AD-178 profile view

Platinum Custom 2.5ct Round Lab Diamond Ring with Round and Marquise Band Ada Diamonds Design AD-178 on Hand

Platinum Four Carat Pear Cut Lab Diamond with Spiral Band Ada Diamonds Design AD-178 Macro

Platinum 4ct Pear Custom Lab Diamond Ring with Twisting Diamond Band Ada Diamonds Design AD-178

Platinum 2.5ct Round Six Prong Cathedral Lab Diamond Engagement Ring with Pavé Band Ada Diamonds Design AD-178 Macro

Platinum 2.5 Carat Round Cathedral Six Prong Engagement Ring with Diamonds on the Band Made with Lab Created Diamonds Ada Diamonds Design AD-178 Profile View

Platinum 1.5 Carat Round Lab Diamond Ring with Knife-Edge Spiral Diamond Band Ada Diamonds Design AD-178

Platinum 1.5 Carat Round Brilliant Custom Engagement Ring with Spiral Diamond Band Ada Diamonds Design Ad-178 Profile View

Platinum Custom 3ct Round Cathedral Pavé Lab Diamond Ring with Floral Basket Ada Diamonds Design AD-178 Macro

Platinum 3ct Round Custom Lab Diamond Engagement Ring with Diamond Band Ada Diamonds Design AD-178 Profile View

Platinum 2 ct emerald cut lab diamond ring with diamond accented band and hidden halo ada diamonds design ad -178

Platinum 2 ct emerald cut lab diamond ring with diamond accented band and hidden halo ada diamonds design ad -178 macro

platinum 2.5ct round lab diamond ring with custom round and marquise diamond band ada diamonds design ad-178

platinum 2.5ct lab diamond ring with round center stone and round and marquise band ada diamonds design ad-178

platinum 1.75 carat round lab diamond with three sided pavé band with milgrain detail ada diamonds design ad-178

platinum 1.5ct round lab created diamond with three sided pavé band with milgrain detail ada diamonds design ad-178

white gold custom 1.75ct round lab diamond floral inspired engagement ring with twisting band ada diamonds design ad-178

white gold custom lab diamond engagement ring with round center stone and twisting diamond band ada diamonds design ad-178

platinum 5 ct round trellis cathedral pave lab diamond engagement ring ada diamonds design ad 178 macro

platinum 5 ct round trellis cathedral pave lab diamond engagement ring ada diamonds design ad 178 on model

14k rose gold 3ct oval lab diamond engagement ring with custom round and marquise band ada diamonds design ad178 macro

14k rose gold 3ct oval lab diamond engagement ring with custom round and marquise band ada diamonds design ad178 on hand

platinum 2 carat radiant manmade diamond engagement ring with marquise and round band ada diamonds design ad178

platinum 2 carat radiant cut lab diamond ring with custom round and marquise band ada diamonds design ad 178

Ada&#39;s engagement ring settings featuring a band adorned with lab grown diamonds start at $2,000 USD (setting price only - center stone priced separately). Platinum available for an additional $300 fee.  Subject to availability and feasiblity. You will receive a custom quote for your desired custom design.

Add a custom layer of sparkle with lab grown diamond band in any style you can imagine. Coverage options in 1/2, 3/4, and eternity styles.

Custom Diamond Band Setting

Custom Pavé

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.