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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    154 Items
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    MOST LOVED
    Cushion Petite Adora Solitaire Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Petite Adora Solitaire Lab Diamond Engagement Ring In Platinum, Angle View
    Petite Adora Solitaire Diamond Engagement Ring
    $650
    MOST LOVED
    Cushion Accented Twisted Vine Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Accented Twisted Vine Lab Diamond Engagement Ring In Platinum, Angle View
    Accented Twisted Vine Diamond Engagement Ring
    $990
    Cushion Luxe Belle Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Belle Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Belle Diamond Engagement Ring
    $790
    Cushion Three Stone Twisted Vine Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Three Stone Twisted Vine Lab Diamond Engagement Ring In Platinum, Angle View
    Three Stone Petite Twisted Vine Diamond Engagement Ring
    $1,150
    Hidden Halo
    Cushion Aurea Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Aurea Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Aurea Diamond Engagement Ring
    $890
    Hidden Halo
    Cushion Mystique Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Mystique Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Mystique Halo Diamond Engagement Ring
    $750
    Cushion Alma 2mm Bezel Solitaire Diamond Engagement Ring In Platinum - Lucenjuri Cushion Alma 2mm Bezel Solitaire Diamond Engagement Ring In Platinum, Angle View
    Alma 2mm Bezel Solitaire Diamond Engagement Ring
    $1,350
    Cushion Capella Engraved Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Capella Engraved Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Capella Engraved Diamond Engagement Ring
    $790
    Cushion Tapered Baguette Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Tapered Baguette Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Tapered Baguette Diamond Engagement Ring
    $850
    Cushion Elle 2mm Bezel Solitaire Diamond Engagement Ring In Platinum - Lucenjuri Cushion Elle 2mm Bezel Solitaire Diamond Engagement Ring In Platinum, Angle View
    Elle 2mm Bezel Solitaire Diamond Engagement Ring
    $1,290
    Cushion Twisted Vine Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Twisted Vine Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Twisted Vine Diamond Engagement Ring
    $850
    Cushion Petite Hudson Milgrain Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Petite Hudson Milgrain Lab Diamond Engagement Ring In Platinum, Angle View
    Petite Hudson Milgrain Diamond Engagement Ring
    $750
    Hidden Halo
    Cushion Petite Pavé Valentina Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Petite Pavé Valentina Lab Diamond Engagement Ring In Platinum, Angle View
    Petite Pavé Valentina Diamond Engagement Ring
    $850
    Cushion Concerto Three Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Concerto Three Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Concerto Three Stone Diamond Engagement Ring
    $890
    Cushion Sonata Three Stone Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Sonata Three Stone Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Sonata Three Stone Diamond Engagement Ring
    $1,050
    Cushion Luxe Twisted Vine Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Twisted Vine Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Twisted Vine Diamond Engagement Ring
    $1,150
    Cushion Petite Alma 1.6mm Bezel Solitaire Diamond Engagement Ring In Platinum - Lucenjuri Cushion Petite Alma 1.6mm Bezel Solitaire Diamond Engagement Ring In Platinum, Angle View
    Petite Alma 1.6mm Bezel Solitaire Diamond Engagement Ring
    $1,190
    Cushion Luxe Three Stone Pavé Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Three Stone Pavé Lab Diamond Engagement Ring In Platinum, Angle View
    Luxe Fiona Three Stone Pavé Diamond Engagement Ring
    $1,090
    Cushion Laurel Diamond Engageemnt Ring In Platinum - Lucenjuri Cushion Laurel Diamond Engageemnt Ring In Platinum, Angle View
    Laurel Diamond Engagement Ring
    $1,190
    Cushion Mona Three Stone Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Mona Three Stone Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Mona Three Stone Diamond Engagement Ring
    $750
    Cushion Trillion Cut Three Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Trillion Cut Three Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Trillion Cut Three Stone Diamond Engagement Ring
    $750
    Cushion Halo Split Shank Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Halo Split Shank Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Halo Split Shank Diamond Engagement Ring
    $1,150
    Cushion Milgrain Scalloped Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Milgrain Scalloped Lab Diamond Engagement Ring In Platinum, Angle View
    Camellia Vintage Milgrain Scalloped Diamond Engagement Ring
    $1,090
    Cushion Three Stone Marquise Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Three Stone Marquise Lab Diamond Engagement Ring In Platinum, Angle View
    Athena's Three Stone Oval Diamond Engagement Ring
    $990
    Cushion Vintage Filigree Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Vintage Filigree Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Symphony Diamond Engagement Ring
    $750
    Cushion Luxe Hera Three Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Hera Three Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Luxe Hera Three Stone Diamond Engagement Ring
    $1,390
    Hidden Halo
    Cushion Luxe Valentina Pavé Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Valentina Pavé Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Valentina Pavé Diamond Engagement Ring
    $950
    Cushion Luxe Calantha Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri - Lucenjuri Cushion Luxe Calantha Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Calantha Halo Diamond Engagement Ring
    $1,090
    Hidden Halo
    Cushion Seraphine Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Seraphine Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Seraphine Diamond Engagement Ring
    $790
    Cushion Three Stone Emerald Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Three Stone Emerald Lab Diamond Engagement Ring In Platinum, Angle View
    Fiona Three Stone Emerald Diamond Engagement Ring
    $990
    Cushion Calantha Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Calantha Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Calantha Halo Diamond Engagement Ring
    $890
    Cushion Bliss Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Bliss Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Bliss Halo Diamond Engagement Ring
    $1,090
    Hidden Halo
    Cushion Minerva Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Minerva Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Minerva Halo Diamond Engagement Ring
    $1,350
    Hidden Halo
    Cushion Valentina Pavé Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Valentina Pavé Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Valentina Pavé Diamond Engagement Ring
    $890
    Cushion Luxe Francis Engraved Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Francis Engraved Lab Diamond Engagement Ring In Platinum, Angle View
    Luxe Francis Engraved Diamond Engagement Ring
    $890
    Hidden Halo
    Cushion Artemis Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Artemis Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Artemis Diamond Engagement Ring
    $1,190
    A Promise to Last Forever, Crafted Sustainably
    Celebrate your love story with engagement rings that are as meaningful as they are beautiful. Featuring ethically sourced lab grown diamonds, each ring is a testament to your commitment and shared values.
    Your Love, Perfectly Set
    Complete your love story with wedding bands that beautifully complement your engagement ring. From classic designs to modern styles, find the perfect match to celebrate your forever.
    Hand wearing multiple lab grown diamond engagement rings on a light background
    Create Your Dream Engagement Ring
    Bring your vision to life with Lucenjuri’s easy-to-use design tool, making it effortless to craft the engagement ring of your dreams. Start designing today and create a piece as unique as your love story.
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    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.