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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    148 Items
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    • Price, low to high
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    Oval Aurora Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Aurora Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Aurora Diamond Engagement Ring
    $790
    Oval Halo Shaped Side Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Oval Halo Shaped Side Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Halo Philomena Pear Shaped Side Stone Diamond Engagement Ring
    $1,190
    Oval Aspen Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Aspen Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Aspen Diamond Engagement Ring
    $890
    Oval Alma 4mm Bezel Solitaire Diamond Engagement Ring In Platinum - Lucenjuri Oval Alma 4mm Bezel Solitaire Diamond Engagement Ring In Platinum, Angle View
    Alma 4mm Bezel Solitaire Diamond Engagement Ring
    $1,990
    Oval Thora Three Stone Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Thora Three Stone Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Thora Three Stone Diamond Engagement Ring
    $990
    Oval Lab Grown Diamond Solitaire Engagement Ring In Platinum - Lucenjuri Oval Lab Grown Diamond Solitaire Engagement Ring In Platinum, Angle View
    Stella Diamond Engagement Ring
    $850
    Oval Prong Bezel Solitaire Diamond Engagement Ring In Platinum - Lucenjuri Oval Prong Bezel Solitaire Diamond Engagement Ring In Platinum, Angle View
    Prong Bezel Solitaire Diamond Engagement Ring
    $1,190
    Oval Solaris Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Solaris Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Solaris Halo Diamond Engagement Ring
    $1,050
    Oval Luxe Three Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Oval Luxe Three Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Luxe Melody Three Stone Diamond Engagement Ring
    $1,150
    Oval Floral Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Floral Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Floral Halo Diamond Engagement Ring
    $990
    Oval Luxe Victoria Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Luxe Victoria Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Victoria Diamond Engagement Ring
    $1,350
    Oval Selena Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Selena Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Selena Diamond Engagement Ring
    $790
    Oval Adorned Four-Prong Lab Diamond Engagement Ring In Platinum - Lucenjuri Oval Adorned Four-Prong Lab Diamond Engagement Ring In Platinum, Angle View
    Petite Adorned Classic Four-Prong Diamond Engagement Ring
    $990
    Oval Carla Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Carla Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Carla Diamond Engagement Ring
    $850
    Oval Gwendolyn Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Gwendolyn Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Gwendolyn Halo Diamond Engagement Ring
    $1,150
    Oval Knife Edge Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Knife Edge Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Olivia Knife Edge Diamond Engagement Ring
    $890
    Oval Mirabelle Antique Halo Lab Diamond Engagement Ring In Platinum - Lucenjuri Oval Mirabelle Antique Halo Lab Diamond Engagement Ring In Platinum, Angle View
    Mirabelle Antique Halo Diamond Engagement Ring
    $950
    Oval Arabella Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Arabella Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Arabella Halo Diamond Engagement Ring
    $950
    Oval Three Stone Engraved Lab Diamond Engagement Ring In Platinum - Lucenjuri Oval Three Stone Engraved Lab Diamond Engagement Ring In Platinum, Angle View
    Francis Three Stone Engraved Diamond Engagement Ring
    $1,090
    Hidden Halo
    Oval Nadia Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Nadia Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Nadia Diamond Engagement Ring
    $1,090
    Oval Knife Edge Cathedral Lab Diamond Engagement Ring In Platinum - Lucenjuri Oval Knife Edge Cathedral Lab Diamond Engagement Ring In Platinum, Angle View
    Knife Edge Cathedral Diamond Engagement Ring
    $850
    Oval Viviana Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Viviana Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Viviana Diamond Engagement Ring
    $990
    Oval Honoria Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Honoria Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Honoria Halo Diamond Engagement Ring
    $1,090
    Bezel Toi Et Moi Oval and Marquise Diamond Engagement Ring In Platinum - Lucenjuri Bezel Toi Et Moi Oval and Marquise Diamond Engagement Ring In Platinum, Angle View
    Bezel Toi et Moi Oval and Marquise Diamond Engagement Ring
    $1,550
    Oval Twisted Knot Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Twisted Knot Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Twisted Knot Diamond Engagement Ring
    $790
    Hidden Halo
    Oval Double Hidden Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Double Hidden Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Double Hidden Halo Diamond Engagement Ring
    $850
    Oval Dorothea Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Dorothea Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Dorothea Diamond Engagement Ring
    $990
    Oval Luxe Halo And Twisted Shank Lab Diamond Engagement Ring In Platinum - Lucenjuri Oval Luxe Halo And Twisted Shank Lab Diamond Engagement Ring In Platinum, Angle View
    Luxe Genevieve Halo And Twisted Shank Diamond Engagement Ring
    $1,090
    Oval Melody Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Melody Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Melody Halo Diamond Engagement Ring
    $950
    Oval Celestia Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Celestia Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Celestia Diamond Engagement Ring
    $1,050
    Oval Luxe Hazel Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Luxe Hazel Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Hazel Diamond Engagement Ring
    $950
    Oval Elara Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Elara Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Elara Diamond Engagement Ring
    $790
    Oval Luxe Daphne Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Luxe Daphne Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Daphne Diamond Engagement Ring
    $1,050
    Oval Adorned Knife Edge Six-Prong Lab Diamond Engagement Ring In Platinum - Lucenjuri Oval Adorned Knife Edge Six-Prong Lab Diamond Engagement Ring In Platinum, Angle View
    Adorned Classic Knife Edge Six-Prong Diamond Engagement Ring
    $950
    Oval Dulcie Three Stone Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Dulcie Three Stone Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Dulcie Three Stone Diamond Engagement Ring
    $790
    Oval Couture Three Stone Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Couture Three Stone Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Couture Three Stone Diamond Engagement Ring
    $890
    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

    July 07, 2026
    Obsessed
    Couldn't be happier :) The ring is absolutely beautiful, the craftsmanship is amazing, and the entire process was smooth from start to finish. They made sure my vision came to life and sent videos and photos along the way. The whole team was incredibly helpful. I'm obsessed with how it turned out!!
    Aisha I.
    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

    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.