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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    Cushion Adorned Faceted Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Adorned Faceted Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Adorned Faceted Diamond Engagement Ring
    $1,150
    Cushion Evermore Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Evermore Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Evermore Diamond Engagement Ring
    $1,190
    Cushion Amulet Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Amulet Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Amulet Diamond Engagement Ring
    $950
    Cushion Fiona Three Stone Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Fiona Three Stone Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Fiona Three Stone Diamond Engagement Ring
    $1,050
    Hidden Halo
    Cushion Double Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Double Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Double Halo Diamond Engagement Ring
    $1,250
    Cushion Octagon Baguette Halo Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Octagon Baguette Halo Lab Diamond Engagement Ring In Platinum, Angle View
    Octagon Baguette Halo Diamond Engagement Ring
    $990
    Cushion Yvette Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Yvette Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Yvette Diamond Engagement Ring
    $790
    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
    Cushion Clementine Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Clementine Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Clementine Halo Diamond Engagement Ring
    $890
    Cushion Solitaire Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Solitaire Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Solitaire Diamond Engagement Ring
    $850
    Cushion Ballad Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Ballad Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Ballad Diamond Engagement Ring
    $850
    Cushion Catalina Ribbon Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Catalina Ribbon Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Catalina Ribbon Diamond Engagement Ring
    $850
    Cushion Wynter Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Wynter Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Wynter Diamond Engagement Ring
    $890
    Cushion Adorned Couture Three Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Adorned Couture Three Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Adorned Couture Three Stone Diamond Engagement Ring
    $890
    Cushion Ava Cathedral Engagement Ring In Platinum - Lucenjuri Cushion Ava Cathedral Engagement Ring In Platinum, Angle View
    Ava Cathedral Engagement Ring
    $850
    Hidden Halo
    Cushion Petite Infinito Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Petite Infinito Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Petite Infinito Diamond Engagement Ring
    $850
    Cushion Joy Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Joy Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Joy Diamond Engagement Ring
    $950
    Cushion Petal Aurora Four-Prong Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Petal Aurora Four-Prong Lab Diamond Engagement Ring In Platinum, Angle View
    Classic Petal Aurora Four-Prong Diamond Engagement Ring
    $790
    Cushion Floral Vintage Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Floral Vintage Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Floral Vintage Diamond Engagement Ring
    $950
    Cushion Muse Three Stone Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Muse Three Stone Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Muse Three Stone Diamond Engagement Ring
    $850
    Cushion Eleanor Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Eleanor Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Eleanor Halo Diamond Engagement Ring
    $950
    Cushion Vrenna Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Vrenna Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Vrenna Diamond Engagement Ring
    $850
    Cushion Luxe Pavé Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Pavé Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Pavé Halo Diamond Engagement Ring
    $1,350
    Cushion Luxe Georgiana Halo Engagement Diamond Ring In Platinum - Lucenjuri Cushion Luxe Georgiana Halo Engagement Diamond Ring In Platinum, Angle View
    Luxe Georgiana Halo Engagement Diamond Ring
    $1,050
    Cushion Reverie Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Reverie Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Reverie Diamond Engagement Ring
    $750
    Cushion Luxe Halo Luna Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Luxe Halo Luna Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Luxe Halo Luna Diamond Engagement Ring
    $1,190
    Cushion Ariel Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Ariel Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Ariel Diamond Engagement Ring
    $850
    Cushion Sovereign Charm Halo Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Sovereign Charm Halo Lab Diamond Engagement Ring In Platinum, Angle View
    Sovereign Charm Halo Diamond Engagement Ring
    $950
    Cushion Marquise Cluster Halo Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Marquise Cluster Halo Lab Diamond Engagement Ring In Platinum, Angle View
    Marquise Cluster Halo Diamond Engagement Ring
    $1,090
    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
    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.
    Competitive Pricing
    Lifetime Warranty
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    Customer Reviews

    July 23, 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 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.

    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.