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Starting at price assumes a matched pair of F+ VS2+ lab diamonds in 14k. Exact carat weights may vary.Want bigger diamonds? Prefer to pick your own matched pair? Our friendly Diamond Concierge are here to assist you. <a href="/inquire">Inquire</a> to get started or learn more about our exclusive<a href="/diamond-concierge-process" target="_blank" rel="noopener noreferrer"> Concierge Experience</a>.

Starting at price assumes a F+ VS2+ lab diamond in 14k. Exact carat weights may vary.Want a bigger diamond? Prefer to pick your own? Our friendly Diamond Concierge are here to assist you. <a href="/inquire">Inquire</a> to get started or learn more about our exclusive<a href="/diamond-concierge-process"> Concierge Experience</a>.

Features DEF VS lab grown diamonds set in 14k. Carat weights are approximate.

Starting at price assumes DEF VS lab grown diamonds set in 14k. Carat weights are approximate.

Starting at price assumes a matched pair of F+ VS2+ lab diamonds in 14k. Exact carat weights may vary.&nbsp;

Starting at price assumes a matched pair of F+ VS2+ lab diamonds with DEF VS lab grown melee set with in 14k. Exact carat weights may vary.

Starting at price assumes a F+ VS2+ lab diamond. Exact carat weights may vary.

Starting at price assumes a F+ VS2+ lab diamond with DEF VS lab grown melee in 14k. Exact carat weights may vary.&nbsp;

Starting at price assumes DEF/VS lab grown diamonds in sizes 5-6 set in your choice of gold. Additional setting fee for platinum: $300. Diamond sizes and weights are approximate and subject to availability.

Starting at pricing assumes 14k yellow, 14k rose, 18k white, 18k yellow, or 18k rose gold in sizes 7-10. Pricing is for the setting only - center stone priced separately.All of Ada's solitaire settings are fully bespoke and made to order. Want to customize this ring to meet your needs? No problem. Our friendly Diamond Concierge are here to help you create the perfect ring.

Custom bands feature DEF/VS lab grown diamonds. Diamond sizes and weights are approximate and subject to availability. Please note that all custom bands of 4mm or wider are final sale and not eligible for return or re-size.

Available in our light comfort fit (~1.75mm height) and standard comfort fit (~2.2mm height). The two most popular widths for men are 5mm and 6mm. Starting at pricing assumes 18k white, yellow, or rose gold in light comfort fit in sizes 7-10. Additional costs: Platinum +$300 USD, standard weight +$400 USD. Available discounts: 14k yellow or rose gold -$200 USD; 4mm -$200 USD.Comparison shopping? The depth or height of the band contributes to the pricing of metal bands. Ada’s light comfort fit depth may be referred to as “mid weight” or even “heavy weight” by other brands. We believe your wedding band should feel comfortable, yet substantial.

Available in standard comfort fit (~1.9mm height). The two most popular widths for men are 5mm and 6mm. Starting at pricing assumes 18k white, yellow, or rose gold in comfort fit in sizes 7-10. Additional costs: Platinum +$300 USD. Available discounts: 14k yellow or rose gold -$200 USD; 4mm -$200 USD.Comparison shopping? The depth or height of the band contributes to the pricing of metal bands. We believe your wedding band should feel comfortable, yet substantial.

Starting at price assumes DEF/VS lab grown diamonds in sizes 5-6 set in your choice of gold. Additional setting fee for platinum: $300. Carat weights are approximate.

Starting at pricing assumes 14k yellow or rose gold in sizes 4-7.Note: Metal bands are not custom cast and are available as off-the-shelf items for expediency and cost. As a result, this ring may have very slight differences in color for yellow and rose gold from custom cast pieces. If you are interested in a custom cast band to accompany your wedding band set, please inquire.

Looking to purchase a single earring? We're happy to sell individually. Please inquire and a member of our Diamond Concierge Team will be happy to help.

Interested in another metal? <a href="/inquire">Please inquire</a>.

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>.

Our friendly Diamond Concierge Team is available to answer any questions, help you choose the perfect {{Jewelry_Type_Clean}}, or customize this design to your exact specifications.

This design is only available in a single carat weight. Please inquire if you would like to customize this design.

Setting Price as Currently Configured

PDP ER - Setting Price as Currently Configured

_Secret Sale_ Details

Limited quantities available. Secret Sale items may only be exchanged or returned for store credit and are not eligible for a refund.

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.

Set with friction posts and tension backs. Screw backs available upon request.&nbsp;

Lab diamonds of 0.70ct or larger are guaranteed to come with IGI, GCAL, or GIA grading reports. Lab diamonds smaller than 0.70ct may not be graded but have been assessed by Ada Diamonds staff.&nbsp;

Planning to wear this next to an engagement ring? Consider a <a href="/jewelry/spacer-band-295">Spacer Band</a> to protect your prongs.

Ready to order? A member of our Concierge team will confirm your order via email prior to production.

PDP - Wedding Bands - Purchase Fine Print

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.

Single Bezel Floating Cosmopolitan Necklace - Ada Diamonds

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Regular Jewelry Modal

Our Floating Cosmopolitan Necklace features a solitaire round brilliant lab grown diamond bezel set in 14k white, yellow, or rose gold, starting at: 0.10ctw: $750 USD 0.17ctw: $825 USD 0.25ctw: $900 USD Starting at pricing assumes a DEF, VS lab grown diamond set in 14k white, yellow, or rose gold. Additional setting fees for 18kt: $150, for platinum: $300. Carat weights are approximate and may vary.  All of Ada&#39;s fashion jewelry is fully bespoke and made to order. Our friendly Diamond Concierge are here to assist you in creating a stunning piece of fine jewelry customized to meet your need with conflict-free lab diamonds hand selected for quality, fire, and brilliance. <a href="https://www.adadiamonds.com/inquire/" target="_blank">Inquire</a> to get started or learn more about our exclusive <a href="https://www.adadiamonds.com/diamond-concierge-process" target="_blank">Concierge Experience</a>. In a hurry? Shop our hand-curated selection of <a href="https://www.adadiamonds.com/ready-to-ship-jewelry" target="_blank">ready to ship lab diamond fine jewelry</a> or <a href="https://www.adadiamonds.com/inquire/" target="_blank">inquire</a> to build something custom.

round lab diamond single bezel floating cosmopolitan necklace white gold ada diamonds design ad 039 on model

Single bezel floating cosmopolitan necklace made with laboratory grown diamonds ADA Diamonds designs design number 039

Cosmopolitan Necklace Styles

Single Bezel Floating Cosmopolitan Necklace

Lab created diamond single floating bezel cosmopolitan necklace in rose gold ADA Diamonds design number 039

single bezel floating cosmopolitan necklace white gold made with round lab grown diamond ada diamonds design ad 039

Yellow gold single bezel floating cosmopolitan necklace made with man made diamonds ADA Diamonds design number 039

A floating lab created diamond necklace featuring a single, bezel set round diamond on a 16" chain. Available options: platinum, 14k or 18k gold: white, yellow, rose. All of Ada's fine jewelry is custom made to order. Design the perfect conflict-free diamond anniversary gift with our approachable diamond experts. Learn more about the future of fine jewelry today!

Solitaire Diamond Station Necklace

A sophisticated pendant necklace that features a round brilliant lab grown diamond in a bezel setting suspended on a 16&quot; chain. May be available for immediate shipment. Please inquire.

Single Bezel Floating Cosmopolitan Necklace in 14k White Gold 0.17ctw

Single Bezel Floating Cosmopolitan Necklace in 14k Yellow Gold 0.17ctw

Single Bezel Floating Cosmopolitan Necklace in 14k Rose Gold 0.17ctw

18k White Gold 0.1ctw Solitaire Diamond Station Necklace in 18k White Gold featuring 0.1 ctw Round Lab Diamonds (Main View)

Single Bezel Floating Cosmopolitan Necklace in 18k White Gold 0.1ctw

Single Bezel Floating Cosmopolitan Necklace in 18k White Gold 0.25ctw

Round Brilliant Lab Grown Diamonds set in Single Bezel Floating Cosmopolitan Necklace

Single Bezel Floating Cosmopolitan diamond necklace made with laboratory diamonds ADA Diamonds design 039

Single Bezel Floating Cosmopolitan Necklace in Platinum 0.1ctw

0.1 Carat Round Diamonds set in 18k White Gold Solitaire Diamond Station Necklace

Hand Selected 0.1 ct Round Brilliant Diamonds Single Bezel Floating Cosmopolitan Necklace in 18k White Gold (Main View)

round lab diamond single bezel floating cosmopolitan necklace white gold ada diamonds design ad 039

Single Bezel Floating Cosmopolitan Necklace in 14k White Gold 0.25ctw

Platinum Single Bezel Floating Cosmopolitan Necklace featuring 0.25 ct Round Lab Diamonds

AD-039 Single Bezel Floating 4-0mm WG5

Single Bezel Floating Cosmopolitan Necklace in Platinum 0.25ctw

Platinum 0.1ctw Solitaire Diamond Station Necklace in Platinum featuring 0.1 Carat Round Lab Diamonds