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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    165 Items
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    Cushion Rosalind Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Rosalind Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Rosalind Diamond Engagement Ring
    $950
    Cushion Amber Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Amber Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Amber Diamond Engagement Ring
    $1,090
    Cushion Luxe Kite Set Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Kite Set Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Kite Set Diamond Engagement Ring
    $950
    Cushion Lyra Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Lyra Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Lyra Diamond Engagement Ring
    $890
    Cushion Calla Solitaire Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Calla Solitaire Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Calla Diamond Engagement Ring
    $890
    Cushion Infinito Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Infinito Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Infinito Diamond Engagement Ring
    $790
    Cushion Halo Shaped Side Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Halo Shaped Side Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Halo Philomena Pear Shaped Side Stone Diamond Engagement Ring
    $1,190
    Cushion Aspen Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Aspen Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Aspen Diamond Engagement Ring
    $890
    Cushion Alma 4mm Bezel Solitaire Diamond Engagement Ring In Platinum - Lucenjuri Cushion Alma 4mm Bezel Solitaire Diamond Engagement Ring In Platinum, Angle View
    Alma 4mm Bezel Solitaire Diamond Engagement Ring
    $1,990
    Cushion Freesia Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Freesia Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Freesia Diamond Engagement Ring
    $790
    Cushion Thora Three Stone Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Thora Three Stone Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Thora Three Stone Diamond Engagement Ring
    $990
    Cushion Prong Bezel Solitaire Diamond Engagement Ring In Platinum - Lucenjuri Cushion Prong Bezel Solitaire Diamond Engagement Ring In Platinum, Angle View
    Prong Bezel Solitaire Diamond Engagement Ring
    $1,190
    Cushion Solaris Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Solaris Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Solaris Halo Diamond Engagement Ring
    $1,050
    Cushion Luxe Three Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Three Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Luxe Melody Three Stone Diamond Engagement Ring
    $1,150
    Cushion Floral Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Floral Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Floral Halo Diamond Engagement Ring
    $990
    Cushion Luxe Victoria Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Victoria Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Victoria Diamond Engagement Ring
    $1,350
    Cushion Selena Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Selena Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Selena Diamond Engagement Ring
    $790
    Cushion Adorned Four-Prong Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Adorned Four-Prong Lab Diamond Engagement Ring In Platinum, Angle View
    Petite Adorned Classic Four-Prong Diamond Engagement Ring
    $990
    Cushion Carla Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Carla Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Carla Diamond Engagement Ring
    $850
    Cushion Accented Petal Four-Prong Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Accented Petal Four-Prong Lab Diamond Engagement Ring In Platinum, Angle View
    Accented Petal Four-Prong Diamond Engagement Ring
    $890
    Cushion Gwendolyn Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Gwendolyn Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Gwendolyn Halo Diamond Engagement Ring
    $1,150
    Cushion Knife Edge Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Knife Edge Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Olivia Knife Edge Diamond Engagement Ring
    $890
    Cushion Mirabelle Antique Halo Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Mirabelle Antique Halo Lab Diamond Engagement Ring In Platinum, Angle View
    Mirabelle Antique Halo Diamond Engagement Ring
    $950
    Hidden Halo
    Cushion Hidden Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Hidden Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Hidden Halo Diamond Engagement Ring
    $950
    Cushion Perfect Fit Three Stone Pear Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Perfect Fit Three Stone Pear Lab Diamond Engagement Ring In Platinum, Angle View
    Perfect Fit Three Stone Pear Diamond Engagement Ring
    $790
    Hidden Halo
    Cushion Nadia Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Nadia Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Nadia Diamond Engagement Ring
    $1,090
    Cushion Seraphina Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Seraphina Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Seraphina Halo Diamond Engagement Ring
    $990
    Cushion Knife Edge Cathedral Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Knife Edge Cathedral Lab Diamond Engagement Ring In Platinum, Angle View
    Knife Edge Cathedral Diamond Engagement Ring
    $850
    Cushion Viviana Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Viviana Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Viviana Diamond Engagement Ring
    $990
    Cushion Luxe Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Halo Diamond Engagement Ring
    $1,390
    Cushion Marvella Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Marvella Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Marvella Diamond Engagement Ring
    $850
    Cushion Honoria Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Honoria Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Honoria Halo Diamond Engagement Ring
    $1,090
    Cushion Amara Kite Set Halo Engagement Ring In Platinum - Lucenjuri Cushion Amara Kite Set Halo Engagement Ring In Platinum, Angle View
    Amara Kite Set Halo Engagement Ring
    $990
    Cushion Darcy Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Darcy Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Darcy Diamond Engagement Ring
    $1,090
    Cushion Celestia Halo Engagement Diamond Ring In Platinum - Lucenjuri Cushion Celestia Halo Engagement Diamond Ring In Platinum, Angle View
    Celestia Halo Engagement Diamond Ring
    $1,190
    Cushion Elodie Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Elodie Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Elodie Diamond Engagement Ring
    $790
    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 04, 2026
    5 Stars
    It’s perfect
    Mena
    May 11, 2026
    Best experience
    I had the best experience with Lucenjuri! My diamond ring arrived today and it is absolutely stunning. I couldn't stop staring! Can't wait to purchase with them again.
    Maria H.
    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.
    May 02, 2026
    Great customer service.
    Christine has been absolutely wonderful! She is so helpful with all my questions, very quick to respond, and always provides additional details for important things I didn't even think to ask. So grateful for all her help, it made such a difference!
    Rylee
    April 27, 2026
    5 Stars
    Beautiful ring just what i wanted
    alberto
    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 25, 2026
    5 Stars
    Products were as ordered.
    John
    April 13, 2026
    Exactly as promised
    Excellent customer service! Very easy process to custom what we were looking for. I’m thankful for the prompt assistance and communication. The marquise ring is beautiful and it’s was exactly as promised.
    Zach J.
    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.
    April 02, 2026
    She loves it
    I purchased my fiancée engagement ring from Lucenjuri last month and she loves it. Came in very well-presented and also diamond certificates! I’m very glad I purchased from here.
    Wally

    Experience Sustainable Luxury with Lucenjuri

    Our meticulous attention encompasses every aspect of creation — an unwavering focus on comfort, quality, and durability ensures your cherished piece lasts a lifetime. With precision, quality, and affordability as our cornerstones, we invite you to experience sustainable luxury, directly from us to you.

    • Commitment to Ethical Sourcing

    • Unmatched Quality Craftsmanship

    • Sustainable Luxury, Ethically Crafted

    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.