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 Majestic Bloom Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Majestic Bloom Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Majestic Bloom Diamond Engagement Ring
    $1,390
    Cushion Hyacinth Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Hyacinth Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Hyacinth Halo Diamond Engagement Ring
    $1,090
    Hidden Halo
    Cushion Crescent Pear Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Crescent Pear Lab Diamond Engagement Ring In Platinum, Angle View
    Athena's Crescent Pear Diamond Engagement Ring
    $950
    Cushion Iris Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Iris Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Iris Diamond Engagement Ring
    $790
    Cushion Lucinda Halo Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Lucinda Halo Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Lucinda Halo Diamond Engagement Ring
    $950
    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 Carnation Three Stone Lab Diamond Engagement Ring In Platinum - Lucenjuri Cushion Carnation Three Stone Lab Diamond Engagement Ring In Platinum, Angle View
    Carnation Three Stone Diamond Engagement Ring
    $990
    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 Chateau Lab Grown Diamond Engagement Ring In Platinum - Lucenjuri Cushion Chateau Lab Grown Diamond Engagement Ring In Platinum, Angle View
    Chateau Diamond Engagement Ring
    $850
    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
    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.