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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    108 Items
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    • Most relevant
    • Best selling
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    • Alphabetically, Z-A
    • Price, low to high
    • Price, high to low
    • Date, old to new
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    Toi Et Moi Radiant and Pear Diamond Engagement Ring In Platinum - Lucenjuri Toi Et Moi Radiant and Pear Diamond Engagement Ring In Platinum, Angle View
    Toi et Moi Radiant and Pear Diamond Engagement Ring
    $1,350
    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
    Toi Et Moi Oval and Pear Accented Diamond Engagement Ring In Platinum - Lucenjuri Toi Et Moi Oval and Pear Accented Diamond Engagement Ring In Platinum, Angle View
    Toi et Moi Oval and Pear Accented Diamond Engagement Ring
    $1,450
    Oval Luxe Regal Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Luxe Regal Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Regal Halo Diamond Engagement Ring
    $1,290
    Bezel Toi Et Moi Pear and Marquise Diamond Engagement Ring In Platinum - Lucenjuri Bezel Toi Et Moi Pear and Marquise Diamond Engagement Ring In Platinum, Angle View
    Bezel Toi et Moi Pear and Marquise Diamond Engagement Ring
    $1,550
    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
    Marquise Hyacinth Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Marquise Hyacinth Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Hyacinth Halo Diamond Engagement Ring
    $1,090
    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
    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
    Toi Et Moi Pear and Pear Diamond Engagement Ring In Platinum - Lucenjuri Toi Et Moi Pear and Pear Diamond Engagement Ring In Platinum, Angle View
    Toi et Moi Double Pear Diamond Engagement Ring
    $1,350
    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
    Toi Et Moi Oval and Marquise Accented Diamond Engagement Ring In Platinum - Lucenjuri Toi Et Moi Oval and Marquise Accented Diamond Engagement Ring In Platinum, Angle View
    Toi et Moi Oval and Marquise Accented Diamond Engagement Ring
    $1,450
    Cushion Rosé Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion 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 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
    Round Petite Romeo Solitaire Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Petite Romeo Solitaire Lab Diamond Engagement Ring In Platinum, Angle View
    Petite Romeo Solitaire Diamond Engagement Ring
    $950
    Round Catalina Ribbon Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Catalina Ribbon Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Catalina Ribbon Diamond Engagement Ring
    $850
    Round Faceted Six-Prong Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Faceted Six-Prong Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Faceted Six-Prong Diamond Engagement Ring
    $850
    Pear Wynter Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Pear Wynter Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Wynter Diamond Engagement Ring
    $890
    Round Ava Cathedral Engagement Ring In Platinum - Lucenjuri Round Ava Cathedral Engagement Ring In Platinum, Angle View
    Ava Cathedral Engagement Ring
    $850
    Marquise Joy Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Marquise Joy Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Joy Diamond Engagement Ring
    $950
    Round Floral Vintage Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Floral Vintage Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Floral Vintage Diamond Engagement Ring
    $950
    Round Luxe Georgiana Halo Engagement Diamond Ring In Platinum - Lucenjuri Round Luxe Georgiana Halo Engagement Diamond Ring In Platinum, Angle View
    Luxe Georgiana Halo Engagement Diamond Ring
    $1,050
    Round Marquise Cluster Halo Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Marquise Cluster Halo Lab Diamond Engagement Ring In Platinum, Angle View
    Marquise Cluster Halo Diamond Engagement Ring
    $1,090
    Round Rosalind Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Rosalind Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Rosalind Diamond Engagement Ring
    $950
    Bezel Toi Et Moi Radiant and Pear Diamond Engagement Ring In Platinum - Lucenjuri Bezel Toi Et Moi Radiant and Pear Diamond Engagement Ring In Platinum, Angle View
    Bezel Toi et Moi Radiant and Pear Diamond Engagement Ring
    $1,550
    Oval Lyra Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Oval Lyra Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Lyra Diamond Engagement Ring
    $890
    Round Calla Solitaire Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Calla Solitaire Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Calla Diamond Engagement Ring
    $890
    Emerald Halo Shaped Side Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Emerald Halo Shaped Side Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Halo Philomena Pear Shaped Side Stone Diamond Engagement Ring
    $1,190
    Round Aspen Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Round Aspen Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Aspen Diamond Engagement Ring
    $890
    Toi Et Moi Princess and Pear Accented Diamond Engagement Ring In Platinum - Lucenjuri Toi Et Moi Princess and Pear Accented Diamond Engagement Ring In Platinum, Angle View
    Toi et Moi Princess and Pear Accented Diamond Engagement Ring
    $1,450
    Emerald Prong Bezel Solitaire Diamond Engagement Ring In Platinum - Lucenjuri Emerald Prong Bezel Solitaire Diamond Engagement Ring In Platinum, Angle View
    Prong Bezel Solitaire Diamond Engagement Ring
    $1,190
    Round Luxe Three Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Round Luxe Three Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Luxe Melody Three Stone Diamond Engagement Ring
    $1,150
    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
    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.

    Customer Reviews

    Hear why our customers love Lucenjuri

    5 Stars
    Absolutely Gorgeous! The diamond is perfect! I reached out to the team and had some pretty specific specs. They went through and found the perfect stone for me and allowed me to choose this specific stone. Their customer service was impeccable. It took about 10 days from ordering to delivery. It was delivered in a beautiful box with the certificate. I’m so glad I found this company!
    Ursula
    September 21, 2026
    Anniversary gift
    Bought this for our 10 year anniversary and it arrived earlier than expected. My wife loved the sparkle right away, and the quality felt much better than anything we saw locally.
    Johnny
    September 16, 2026
    Amazing experience
    I couldn't be happier with my wedding set from Lucenjuri! The team went above and beyond to help me design the exact ring I wanted. The consultants were patient, kind, and highly communicative throughout the entire process. When the rings arrived, I was absolutely blown away by the gorgeous details and incredible quality. I'm a customer for life!
    Shonna W.
    September 07, 2026
    Perfect anniversary upgrade
    My wife had mentioned a toi et moi ring a few times, so I chose this for our anniversary. The radiant and pear stones look amazing together and feel really special.
    Chris L.
    September 06, 2026
    Sleek and beautiful
    I wanted the Myra with a different band and the process was easier than I expected. The finished ring has a sleek look and the diamond sparkles beautifully.
    Dorine S.
    August 23, 2026
    5 Stars
    My ring is beautiful!! Exactly as shown and described. High quality craftsmanship and outstanding communication and customer care! Christine is wonderful and tge best customer care person I have ever worked with! Highly recommended!
    Tracy
    August 04, 2026
    Stunning
    Words and pictures can not describe or do justice for this stunning, gorgeous ring, very sparkly will definitely be buying more from them. Packaging and presentation of the ring when I received was just as gorgeous
    Amber R.
    July 25, 2026
    No regrets
    Buying something this important online made me nervous, but the whole experience was smooth. The ring arrived safely and looked even better than I expected.
    Kevin W.
    July 25, 2026
    ***** Custom Design
    I knew exactly what I wanted, but the ring wasn't available on the website. I contacted Lucenjuri and Christina help me with getting the design finalized. It was a great experience, Christina was very responsive and accommodating. This is my second ring I ordered from Lucenjuri and I couldn't be happier! It features the "Chateau" style band and a 2.19 carat oval diamond. Love it!
    Justyna T.
    July 23, 2026
    Even better in person
    Everything about the experience felt thoughtful, from the packaging to the IGI certificate. The 2.5ct Petite Aurea is gorgeous on my hand, and the diamond looks so bright in person. It looked beautiful online, but seeing it in real life was even better.
    Judy N.
    July 18, 2026
    Competitive Pricing
    Lifetime Warranty
    Free Shipping
    Free Returns

    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.