Lab Grown Diamond Engagement Rings In Platinum

    Choose the strength and natural sheen of Lucenjuri’s platinum engagement rings. Naturally hypoallergenic and exceptionally durable, these rings feature certified lab diamonds designed for a lifetime of beauty.

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    196 Items
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    Round Luxe Three Stone Halo Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Luxe Three Stone Halo Lab Diamond Engagement Ring In Platinum, Angle View
    Luxe Fiona Three Stone Halo Diamond Engagement Ring
    $1,290
    Round Luxe Ciana Three Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Luxe Ciana Three Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Luxe Ciana Three Stone Diamond Engagement Ring
    $850
    Round Marguerite Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Marguerite Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Marguerite Diamond Engagement Ring
    $950
    Round Alena Bezel-Set Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Alena Bezel-Set Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Alena Bezel-Set Diamond Engagement Ring
    $750
    Hidden Halo
    Round Maia Pavé Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Maia Pavé Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Maia Pavé Diamond Engagement Ring
    $1,050
    Round Accents Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Accents Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Accents Diamond Engagement Ring
    $990
    Round Classic Six-Prong Petal Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Classic Six-Prong Petal Lab Diamond Engagement Ring In Platinum, Angle View
    Classic Six-Prong Petal Diamond Engagement Ring
    $690
    Hidden Halo
    Round Accented Knife-Edge Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Accented Knife-Edge Lab Diamond Engagement Ring In Platinum, Angle View
    Collette Accented Knife-Edge Diamond Engagement Ring
    $990
    Round Heart of Petals Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Heart of Petals Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Heart of Petals Diamond Engagement Ring
    $950
    Round Luxe Regal Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Luxe Regal Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Regal Halo Diamond Engagement Ring
    $1,290
    Round Petal Four-Prong Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Petal Four-Prong Lab Diamond Engagement Ring In Platinum, Angle View
    Classic Petal Four-Prong Diamond Engagement Ring
    $850
    Round Vera Bezel Set Solitaire Diamond Engagement Ring In Platinum - Lucenjuri Round Vera Bezel Set Solitaire Diamond Engagement Ring In Platinum, Angle View
    Vera Bezel Set Solitaire Diamond Engagement Ring
    $1,190
    Round Bezel Solitaire Double Band Diamond Engagement Ring In Platinum - Lucenjuri Round Bezel Solitaire Double Band Diamond Engagement Ring In Platinum, Angle View
    Bezel Solitaire Double Band Diamond Engagement Ring
    $1,690
    Round Luminous Halo Vintage Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Luminous Halo Vintage Lab Diamond Engagement Ring In Platinum, Angle View
    Luminous Halo Vintage Diamond Engagement Ring
    $990
    Round Majestic Bloom Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Majestic Bloom Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Majestic Bloom Diamond Engagement Ring
    $1,390
    Round Hyacinth Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Hyacinth Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Hyacinth Halo Diamond Engagement Ring
    $1,090
    Hidden Halo
    Round Hidden Halo Pavé Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Hidden Halo Pavé Lab Diamond Engagement Ring In Platinum, Angle View
    Hidden Halo Six-Prong Diamond Engagement Ring
    $1,490
    Round Iris Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Iris Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Iris Diamond Engagement Ring
    $790
    Round Lucinda Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Lucinda Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Lucinda Halo Diamond Engagement Ring
    $950
    Hidden Halo
    Round Luxe Hidden Halo Six-Prong Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Luxe Hidden Halo Six-Prong Lab Diamond Engagement Ring In Platinum, Angle View
    Luxe Hidden Halo Six-Prong Diamond Engagement Ring
    $1,150
    Round Adorned Faceted Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Adorned Faceted Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Adorned Faceted Diamond Engagement Ring
    $1,150
    Round Evermore Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Evermore Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Evermore Diamond Engagement Ring
    $1,190
    Round Amulet Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Amulet Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Amulet Diamond Engagement Ring
    $950
    Round Knife Edge Six-Prong Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Knife Edge Six-Prong Lab Diamond Engagement Ring In Platinum, Angle View
    Classic Knife Edge Six-Prong Diamond Engagement Ring
    $850
    Round Fiona Three Stone Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Fiona Three Stone Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Fiona Three Stone Diamond Engagement Ring
    $1,050
    Hidden Halo
    Round Double Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Double Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Double Halo Diamond Engagement Ring
    $1,250
    Round Octagon Baguette Halo Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Octagon Baguette Halo Lab Diamond Engagement Ring In Platinum, Angle View
    Octagon Baguette Halo Diamond Engagement Ring
    $990
    Round Yvette Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Yvette Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Yvette Diamond Engagement Ring
    $790
    Round Rosé Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Rosé Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Rosé Diamond Engagement Ring
    $1,250
    Round Luxe Twisted Shank Halo Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Luxe Twisted Shank Halo Lab Diamond Engagement Ring In Platinum, Angle View
    Luxe Josephine Twisted Shank Halo Diamond Engagement Ring
    $1,190
    Round Clementine Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Clementine Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Clementine Halo Diamond Engagement Ring
    $890
    Round Adorned Eight-Prong Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Adorned Eight-Prong Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Adorned Eight-Prong Diamond Engagement Ring
    $950
    Round Solitaire Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Solitaire Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Solitaire Diamond Engagement Ring
    $850
    Round Ballad Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Ballad Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Ballad Diamond Engagement Ring
    $850
    Round Adorned Six-Prong Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Adorned Six-Prong Lab Diamond Engagement Ring In Platinum, Angle View
    Petite Adorned Classic Six-Prong Diamond Engagement Ring
    $950
    Round Winifred Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Winifred Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Winifred Diamond Engagement Ring
    $950
    Discover the enduring strength of platinum. Shop our expertly crafted engagement rings or work with us to create a custom design that perfectly captures your unique love story.
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    Customer Reviews

    June 22, 2026
    Absolutely STUNNING Ring!
    This review is actually for the Athena Crescent Pear ring, which I believe has been sold out, so I decided to leave the review on a similar ring. My now fiancé surprised me with the absolutely STUNNING ring! I could not be happier. The quality is fantastic, the packaging is beautiful and the customer service was outstanding. If you had any doubts about ordering - don’t! I am in love with my beautiful ring ♥️
    Abby S.
    June 09, 2026
    Beautiful and on time
    I decided to order this ring as my everyday ring. It has a 1 carat Cushion cut stone, that it's absolutely beautiful! You can see how sparkly it is and you can't tell the difference between the natural diamonds in my band and the lab diamonds of the ring. The process was easy and the shopping was as expected.
    Justyna T.
    May 08, 2026
    10/10 couldn't recommend Lucenjuri enough
    I was sceptical of buying something so personal from a website, I was wrong to think that. The ring was easily as beautiful as the pictures on Lucenjuri website. The customer service was excellent throughout the process. I couldn’t recommend Lucenjuri enough 10/10
    Toni R.
    April 26, 2026
    Customer for life
    Perfect! My wife loved her ring. I purchased this piece as a combined Valentine’s and 20th-anniversary gift, and it became one of the most meaningful presents I’ve ever given. The website was really easy to navigate, and the pricing was excellent compared to other jewelers. It arrived promptly with all the necessary diamond certification, which gave us great peace of mind. I will definitely be a customer for life.
    Benjamin T.
    April 05, 2026
    Blown Away by Everything!
    Customer service is top notch and the most helpful I have ever experienced. The ring I had ordered got to me at the perfect time. Along with great customer service the product is even more beautiful than I could have imagined. They had earned a life long customer. I will be spreading the word about Lucenjuri and that it is the place to buy all your jewelry!
    Danny M.
    March 27, 2026
    Recommend
    I definitely recommend Lucenjuri! Take it from me, I was skeptical and overthought a lot about where I am going to purchase a ring. Until I came across Lucenjuri, this company made things a lot easier for me and boosted my confidence in choosing the ring that my bride-to-be will bear forever.
    Eric R.
    March 09, 2026
    Couldn't stop staring
    I had the BEST experience with Lucenjuri! Their website is one of the easiest I've used when it comes to vetting diamonds by specific criteria. My ring arrives today and it is absolutely stunning. I couldn't stop staring! Can't wait to purchase with them again.
    Stephanie D.
    February 21, 2026
    Fan for life!
    From start to finish, my experience with Lucenjuri was exceptional. The value is honestly insane for what you receive. The ring-building process was educational and genuinely confidence-inspiring — I never felt pressured, only informed and supported in making the right choice. I would absolutely recommend Lucenjuri to anyone. I’ll be a lifelong customer for anything diamond-related.
    Ruby M.
    February 06, 2026
    She was ecstatic!
    Amazing! Couldn't be happier...I just recently purchased a halo diamond ring for our 15 anniversary an gave it to my wife over a nice dinner and she was ecstatic...couldn't believe how nice and brilliant it was. Highly recommend getting your diamonds from Lucenjuri.
    Jay
    February 04, 2026
    Customer for life
    I could not be happier with my new ring!!! The quality of the of the diamonds and intricate little details is simply impressive. I was very impressed with how professional and secure the packaging the ring came in. I have had several questions along the way and Christine from customer service has been very helpful and quick to respond. Thank you Lucenjuri for the awesome experience. I will definitely be a customer for life.
    Hayley A.

    Platinum Lab Grown Diamond Engagement Rings

    For those who refuse to compromise, platinum lab grown diamond engagement rings represent the absolute pinnacle of fine jewelry. Naturally white, incredibly dense, and significantly rarer than gold, platinum is the "set it and forget it" luxury for the modern bride. Because it is a naturally white metal, a platinum diamond ring will never yellow or require replating, providing a permanent, mirror-like canvas that allows your lab diamond to shine with a pure, uninterrupted brilliance.

    The Unrivaled Strength of a Platinum Lab Diamond Engagement Ring

    There is a profound sense of security in a platinum lab grown diamond ring. Platinum is significantly more durable than gold; instead of losing metal over time when scratched, the metal simply shifts, creating a unique "patina" that symbolizes a lifetime together. It is the most secure platinum ring with lab diamonds, ensuring your prongs remain strong and your diamond stays exactly where it belongs for generations to come.

    Maximum Sparkle: Certified Lab Diamonds in Platinum Settings

    A metal as prestigious as platinum demands a stone of equal caliber. Every platinum diamond engagement ring in our collection is paired with a hand-selected IGI or GIA certified lab grown diamond. Because platinum is naturally colorless, it doesn't "bleed" any warm tones into the diamond, ensuring your stone's fire is showcased with 100% accuracy and world-class light performance.

    The Ultimate Commitment with a Lucenjuri Lab Diamond Engagement Ring

    Choosing platinum is a statement of permanence and sophisticated taste. It is hypoallergenic, substantial in weight, and represents a commitment built to last. At Lucenjuri, we craft the best lab grown diamond engagement rings for those who believe their jewelry should be as enduring as their love story. It’s a sustainable, high-end, and perfectly timeless choice.

    FAQs

    How to clean a platinum diamond ring?

    To keep your platinum diamond engagement ring hitting the light properly, soak it in warm, soapy water for 20 minutes weekly. Use a soft toothbrush to clear out oils under the setting—this is the secret to maintaining that signature Lucenjuri fire. Unlike gold, platinum won’t wear away with cleaning, so a quick professional polish every few years will keep it looking brand new forever.

    Is platinum better than white gold for a lab diamond?

    If you want a metal that stays white forever without maintenance, platinum is the winner. While white gold requires a rhodium "dip" every year or two, a platinum lab grown diamond ring is naturally white to the core. It’s also denser and heavier, giving you that high-end weight on your finger that screams luxury.

    What is the significance of an engagement ring?

    An engagement ring is a physical manifestation of your shared future. At Lucenjuri, we believe a platinum ring with lab diamonds signifies the exact moment two lives decide to become one. It’s not just jewelry; it’s a permanent, resilient symbol of your unique journey and a commitment that is built to last a lifetime.

    What exactly is a "setting" on an engagement ring?

    Think of the setting as the "architectural stage." It’s the precision-engineered metal that holds your diamond and dictates the ring's personality. A great platinum lab grown diamond ring setting doesn't just hold the stone—it protects it and elevates its fire, ensuring the diamond remains the star of the show.

    How do I get my ring size right at home?

    We’ve made the "surprise" proposal (or the self-reward) stress-free. We provide a printable ring sizer and helpful tips on measuring your finger accurately from the comfort of your home. Whether you're buying a platinum ring with lab diamonds for yourself or a partner, we ensure the fit is as perfect as the stone.

    What are some creative engraving ideas I can add?

    Engravings are the ultimate way to make your Lucenjuri ring yours. Popular ideas include your initials, the coordinates of where you first met, or a meaningful quote. Some of my favorite modern takes? A simple "Always" or the date of your first "Yes." The possibilities are endless—make it as personal as your love story.