Name: Demi Diamond Ring (1/3 ct. tw.) with Marseille Diamond Ring (1/3 ct. tw.) in 18K Yellow Gold
Brand: Brilliant Earth
SKU: BE1D305-BE2D2110-18KY
Price: 2740 USD
Availability: InStock
Rating: 4.5 (85 reviews)

The Brilliant Earth Difference

award-winning artistry

Our team designs our collections with precision and skill at our San Francisco studio. We know it’s the details that matter most — so we obsess over each one.

Unmatched
materials & craftsmanship

Our dedication to quality craftsmanship begins with our responsibly sourced precious metals.

industry-leading standards

From our Beyond Conflict Free Diamonds® to the most innovative lab diamonds on the planet, our world class gemologists have been sourcing exceptional diamonds with traceable origins for twenty years.

image description — award-winning
artistry

Our team designs our collections with precision and skill at our San Francisco studio. We know it’s the details that matter most — so we obsess over each one.

Natural Diamond Necklace with Purchase Over $1,000.

Through January 10th, receive a Silver Diamond Solitaire Necklace with purchase over $1,000.

Terms & Conditions: Customers who make a purchase during the offer period totaling over $1,000 online or in stores and enter the promo code DIAMOND in cart during checkout will receive a Silver Floating Solitaire Diamond Pendant (1/10 cttw, H-I color, SI2 clarity). Purchases of gift cards, Extend Jewelry Protection plans, shipping fees, and sales tax are excluded and do not count towards any purchase thresholds for this offer. This offer may not be combined with any other offer and cannot be applied retroactively. Eligible customers will receive only one necklace, regardless of the number of qualifying purchases during the offer period. Limited quantities available and offer is while supplies last. The necklace cannot be exchanged or returned for refund, and will not be replaced if misplaced, lost or stolen. If an item(s) from a purchase over $1,000 is returned and the remaining value of the purchase is less than $1,000, then the necklace must also be returned. If the offered jewelry has already been shipped to a purchaser at the time of such return, then the purchaser must ship the offered jewelry back to Brilliant Earth, or its retail value will be deducted from any refund. Brilliant Earth reserves the right, in its sole discretion, to not provide any jewelry in the event of any fraud or deception, and to substitute the necklace, based on availability. Purchaser is solely responsible for reporting and paying any applicable taxes associated with the receipt of the earrings. Brilliant Earth is not responsible for Internet, telephone, electronic, hardware, software, network or computer malfunctions, failures, or difficulties, or for other technical or human errors that may occur in the administration of this promo. The offer terms are subject to change at any time without prior notice. Other restrictions may apply. This offer begins January 3, 2026 at 12:00AM PT and ends January 10, 2026 at 11:59PM PT. ... Details

Brilliant Earth “Stay in Touch Sweepstakes” (US$1,000 Gift Card)

Brilliant Earth “Stay in Touch Sweepstakes” (US$1,000 Gift Card) Official Rules

Terms & Conditions: NO PURCHASE OR PAYMENT NECESSARY TO ENTER OR WIN, NOR WILL A PURCHASE IMPROVE CHANCES OF WINNING. SUBJECT TO ALL FEDERAL, STATE, AND LOCAL LAWS, REGULATIONS, AND ORDINANCES. 1. GIVEAWAY ENTRY PERIOD: The entry period for Brilliant Earth’s “Stay in Touch Sweepstakes" (the "Giveaway") starts on January 1, 2026 at 12:00 AM Pacific Time ("PT") and will end on January 31, 2026 at 11:59 PM PT ("Giveaway Entry Period"). One (1) winner will be selected on or around February 16, 2026 and notified by email. Winner will be selected subject to these Official Rules. Entry in the Giveaway does not constitute entry into any other promotion, contest, or sweepstakes. THIS GIVEAWAY IS IN NO WAY SPONSORED, ENDORSED OR ADMINISTERED BY, OR ASSOCIATED WITH FACEBOOK, INSTAGRAM, TIKTOK, TWITTER, OR OTHER SOCIAL MEDIA PLATFORMS. 2. SPONSOR: The sponsor for the Giveaway is Brilliant Earth, LLC, located at 300 Grant Ave., 3rd Floor, San Francisco, California 94108 USA. 3. ELIGIBILITY: The Giveaway is open to current legal residents of the 50 United States (excluding Rhode Island) and Washington, D.C. and Canada (excluding residents of the Province of Quebec). All entrants must be 18 years of age or older or age of majority or older (in those jurisdictions where age of majority is over 18). Brilliant Earth, LLC ("Sponsor" or “Brilliant Earth”) employees and their immediate family members (parent, child, sibling and spouse of each) and those living in the same households of each are not eligible. Void elsewhere and where prohibited by law. 4. HOW TO ENTER: During the Giveaway Entry Period, sign up to receive email and/or SMS marketing messages from Brilliant Earth. You will receive one (1) entry for subscribing to email marketing messages and one (1) entry for subscribing to SMS marketing messages. You must be subscribed via the applicable messaging channel at the time of drawing in order to win. The maximum number of entries per person is two (2). Entries received from any person, email address, or phone number in excess of the stated maximum will be void. Any attempt to obtain more than the stated number of entries by using multiple/different email or addresses, accounts, identities, registrations and logins, or any other methods, will disqualify all that participant's entries and that participant will be disqualified from the Giveaway and may be disqualified from future Brilliant Earth promotions. Any use of an automated system to participate is strictly prohibited and will result in disqualification from the Giveaway and all future Brilliant Earth promotions. 5. WINNERS AND ODDS: On or about February 16, 2026, the Sponsor will conduct a random drawing from among all eligible entries timely received. The odds of winning depend upon the number of entries received. One (1) prize will be awarded, consisting of one (1) Brilliant Earth US$1,000 Gift Card (ARV: US$1,000). No substitution, assignment or transfer of any prize is permitted, except by Brilliant Earth, who has the right to substitute a prize with another of comparable or greater value. No returns or exchanges of prizes permitted except at Brilliant Earth's sole discretion. All taxes in connection with the prize, and the reporting consequence thereof, are the sole responsibility of the prize winner. Prize winner may be sent a tax form 1099, or other appropriate tax document, in the event the average retail value of the prize requires Brilliant Earth to submit such form. Brilliant Earth may require a signed affidavit and/or completed W9 before awarding any prize. Prize winner may be required to pay shipping and handling fees. Brilliant Earth, may in its sole discretion, pay for shipping and handling for winners within our normal delivery areas for those jurisdictions. Any taxes or duties owed for shipping and handling fees will be the sole responsibility of the winner. Brilliant Earth will notify the winner via email or SMS to the email address or phone number provided at the time of entry, as applicable, within approximately seven (7) days following the drawing. Winner will have ten (10) days from the time of notification to respond, otherwise the prize will be forfeited and Brilliant Earth will not select an alternate winner. Brilliant Earth and its agencies are not responsible for any delay or failure to receive notification for any reason, including inactive email account(s), technical difficulties associated therewith, or winner's failure to adequately monitor any email account. Brilliant Earth reserves the right to disqualify any winner should winner be in violation of these Official Rules as determined by Brilliant Earth in its sole discretion. IF A POTENTIAL WINNER IS A CANADIAN RESIDENT, THE POTENTIAL WINNER MUST FIRST CORRECTLY ANSWER A FOUR-PART MATHEMATICAL SKILL-TESTING QUESTION WITHOUT ASSISTANCE OF ANY KIND WITHIN A PREDETERMINED TIME LIMIT IN ORDER TO BE NAMED A WINNER. 6. RELEASE AND LIMITATION OF LIABILITY: By entering the Giveaway or receiving any prize, each entrant agrees to release and hold harmless each of Brilliant Earth and Meta Platforms, Inc. (parent company of Facebook and Instagram), and each of such party’s subsidiaries, affiliates, advertising and promotion agencies, partners, representatives, agents, employees, officers, directors, successors and assigns (collectively, the “Released Representatives”) from and against any claim or cause of action, including, but not limited to, personal injury, death, or damage to or loss of property, arising out of participation in the Giveaway or receipt or use or misuse of any prize. The released parties are not responsible for: (1) any incomplete, incorrect or inaccurate information, whether caused by entrants, printing errors or by any of the equipment or programming associated with or utilized in the promotion; (2) any lost or misdirected mail, or any technical failures of any kind, including, but not limited to malfunctions, interruptions, or disconnections in phone lines or network hardware or software; (3) unauthorized human intervention in any part of the entry process or the Giveaway; (4) technical or human error which may occur in the administration of the Giveaway or the processing of entries; or (5) any injury or damage to persons or property which may be caused, directly or indirectly, in whole or in part, from entrant's participation in the Giveaway or receipt or use of misuse of any prize. Entrant agrees to release and hold each of Brilliant Earth and Meta Platforms, Inc., and each of such party’s Released Representatives harmless from any and all consequences, liability, losses, damages (including without limitation, consequential, punitive, incidental, special or increased damages and those related to personal injury, death or damage to property) and costs and expenses, of any kind, under any legal theory, arising from or related to this Giveaway, including but limited to entrant's entry and participation in this Giveaway, the acceptance and/or use (or misuse) of any prize, printing errors, any claims based upon rights of publicity and invasion of privacy. Brilliant Earth is not responsible for any fraud or misconduct on the part of the entrants. Should an entrant engage in fraud or misconduct of any nature, including but not limited to a violation of these Official Rules, that participant is subject to immediate disqualification from the Giveaway and perhaps future Brilliant Earth promotions. If for any reason an entrant's entry is confirmed to have been erroneously deleted, lost, or otherwise destroyed or corrupted, entrant's sole remedy is another entry in the Giveaway, if feasible; if not feasible (as determined by Sponsor in its sole discretion), entrant shall have no remedy or recourse against Brilliant Earth whatsoever. In the event that production, technical, programming or any other reasons cause more than stated number of prizes as set forth in these Official Rules to be available and/or claimed (i.e., more than (1) prize), Brilliant Earth reserves the right to award only the stated number of prizes (i.e., the prize) by a random drawing among all legitimate, un-awarded, eligible prize claims. 7. DISCLAIMER OF REPRESENTATIONS AND WARRANTIES: Brilliant Earth makes no representations or warranties of any kind, express or implied, regarding your participation in the Giveaway or any prize of any kind. The Giveaway, the prize, and all materials provided on or through the Giveaway are provided "as is" without warranty of any kind, either express or implied, including without limitation the implied warranties of merchantability, fitness for a particular purpose, and non-infringement. Prizes awarded through the Giveaway are not subject to Brilliant Earth's warranty for purchased products and will have no eligibility for repair or replacement for any defects. 8. PRIVACY AND USE OF GIVEAWAY INFORMATION: Brilliant Earth collects personal information from you when you enter this Giveaway. All entrant information is subject to Brilliant Earth’s Privacy Policy, which may be found at http://www.brilliantearth.com/security-and-privacy-policies/#privacy. Brilliant Earth reserves the right to use any information collected in accordance with its Privacy Policy. Except where prohibited, participation in the Giveaway constitutes entrant's consent to Brilliant Earth's use of entrant's name, prize information, likeness, voice, opinions, biographical information, hometown and state and all or a part of entrant's entry for promotional purposes in any media without payment or consideration, and without notice to, or prior review or approval from, entrant. Within five days of receiving notice, except where legally prohibited, Brilliant Earth may also require potential winner to sign an affidavit of eligibility, liability release and a publicity release that, among other things, will allow Brilliant Earth to use entrant's name, photograph, likeness, voice, prize information, and biographical information for publicity and promotional purposes without further compensation, and without notice to, or prior review or approval from, entrant. Notice of Financial Incentive (California residents): This Giveaway may be considered a “financial incentive” under the California Consumer Privacy Act because we are giving entrants something in exchange for the collection and retention of their personal information. The value of such personal information is related to the value we offer to entrants for participation in the Giveaway and varies based on several factors, including whether entrants respond to marketing offers from us or subsequently opt out, as well as our costs associated with administering the Giveaway. Participation is voluntary, and you may opt out of the Giveaway at any time by emailing [email protected]. 9. CHOICE OF LAW AND JURISDICTION: Giveaway official rules and the rights and obligations of Brilliant Earth and participants will be governed by, construed, and enforced in accordance with the laws of the State of California, United States of America, without regard to any choice of law principles. All actions, proceedings or litigation relating hereto will be instituted and prosecuted solely within the State of California, San Francisco County. Entrant hereby agrees and irrevocably consents to submit to the exclusive jurisdiction and venue of the courts of the State of California and of the United States of America located in the State of California, United States of America, for any and all claims arising from or related to this Agreement. 10. GIVEAWAY SPONSOR: Brilliant Earth is responsible for the collection, submission and processing of entries and the overall administration and execution of the Giveaway. Entrants should look solely to Brilliant Earth by using the email address [email protected] with any questions, comments or problems related to the Giveaway, including winner's lists. ... Details

Brilliant Earth Subscriber Birthday Offer

Brilliant Earth Subscriber Birthday Offer Official Rules

Terms & Conditions: By signing up for marketing emails and providing us your birth month and day, you’ll receive a $50 credit toward a future purchase of $500 or more during your birthday month. You will receive an email at the beginning of your birthday month containing a unique reference code loaded with the $50 credit. To ensure sufficient processing time, be sure to sign up before your birthday month, otherwise you will receive a credit in the following year. To redeem the credit, enter the unique reference code in the “Gift Card or Promo Code” field while you have at least $500 of products in your shopping bag. Purchases of Extend Jewelry Protection plans, shipping fees, and sales tax do not count towards this purchase threshold. Credit is only valid for a single future purchase and must be redeemed by 11:59 PM PT on the last day of the month in which it was issued. If you unsubscribe from marketing emails prior to your birthday month, you will not receive a credit. Credit will not be reissued once it has been redeemed, even if you make a return. If you return any items from a qualifying purchase and the value of your remaining items is less than $500, the value of the credit will be deducted from any refund. Credit may not be applied toward repairs, resizes, layaway payments or payments on pre-existing orders. Credit may not be combined with any other promotions or offers and may not be applied retroactively. Credit has no cash value and may not be redeemed for cash. Brilliant Earth reserves the right, in its sole discretion, to not honor the credit in the event of any fraud or deception. Brilliant Earth is not responsible for Internet, telephone, electronic, hardware, software, network or computer malfunctions, failures, or difficulties. The promotion terms are subject to change at any time without prior notice. Other restrictions may apply. ... Details

Reviews

4.5

85 Reviews

January 6, 2026

Andy

The ring was made and delivered sooner than expected. Process was seamless and was a huge hit. Was extremely extremely happy. ...Read More

January 1, 2026

Nichloas

Darbi was amazing to work with, the ring we put together was perfect and my fianc├⌐ loves the ring, it gets a lot of attention. ...Read More

December 29, 2025

Samantha

My fianc├⌐e loves it and we are so happy. It looks beautiful on her finger and I know I've made the right choice. ...Read More

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Demi Diamond Ring (1/3 ct. tw.) with Marseille Diamond Ring (1/3 ct. tw.) in 18K Yellow Gold

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