Lab Grown Diamond Solitaire Necklaces In Platinum

Reach the pinnacle of fine jewelry with our platinum lab grown diamond solitaire necklaces, boasting a naturally colorless, hypoallergenic canvas for unmatched stone security.

  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
5 Items
  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
Filter
Competitive Pricing
Lifetime Warranty
Free Shipping
Free Returns

Customer Reviews

Mar 22, 2025
Great quality, great price
Great quality at an affordable price. My wife loves her new diamond necklace! It’s elegant, sparkly, and perfect for everyday wear. She wears it all the time, and I’m happy with the purchase.
— Eric E.
Feb 20, 2025
Totally Worth It!
This marquise necklace is perfect for any occasion. Worth every penny, and the shipping was fast. Plus, it’s IGI-certified, so I know I’m getting top-quality diamonds! Definitely recommend Lucenjuri!
— Jennifer R.
Nov 26, 2024
Timely delivery, love it!
The online process was so easy, received the product in a timely manner and love my tassel diamond necklace! It’s a great piece to wear on a night out, and I always feel glamorous when I wear it.
— Kimberly S.
Oct 9, 2024
Happy Customer!
This isn’t my first time shopping with Lucenjuri, and once again, they didn’t disappoint! I love how it’s both elegant and subtle—perfect for everyday wear. Plus, as always, the shipping was super fast!
— Sophia P.
May 20, 2024
Perfect gift for our daughter
We gave our daughter a halo-set lab diamond necklace for her 21st birthday. She loved it. It was her first 'real' jewelry and she’s barely taken it off since.
— Richard D.
Jun 18, 2024
Happy mom
Received the pear and emerald pendant necklace from my daughter for Mother’s Day. It’s so thoughtful and elegant. Lucenjuri also has the most stunning packaging!
Hannah W.
Mar 16, 2025
A gift that left her speechless
I bought this pear shaped diamond necklace for my girlfriend, and it was the perfect surprise. She loves simplicity with a little bit of sparkle, and this piece was ideal. The necklace arrived on time and in such beautiful packaging. I highly recommend this as a gift for anyone special!
— Mario
Dec 18, 2024
Perfect gift
The necklace was for my 16-year-old grandniece and she was very pleased. It was a perfect gift, and she hasn’t stopped wearing it. She absolutely loved the design and the sparkle!
— Maria D.
Jan 14, 2025
My kind of jewelry
I was looking for something geometric and minimal, and this curved bar design really stood out to me. It's understated but beautifully detailed up close. The stones are set with precision and the gold bar gives it an architectural vibe that I love.
— Clara
Mar 20, 2025
Simple, elegant, and meaningful
Bought this for my wife as a surprise before our anniversary trip. She doesn’t usually wear much jewelry, but she’s worn this nearly every day since it arrived. The heart shape is subtle, not too girly, and it really sparkles.
— Jonathan H.
Mar 28, 2025
Glamorous without the fuss
I was looking for something I could wear every day but still look good for formal events too. This radiant necklace is perfect! Not too flashy, just the right amount of elegance. The IGI certificate definitely gave me extra confidence in my choice, and it arrived fast!
— Joey W.

Platinum Lab Grown Diamond Solitaire Necklaces

Welcome to the absolute peak of fine jewelry engineering. Our platinum lab grown diamond solitaire necklaces are the ultimate choice for true jewelry purists who want zero distractions. Platinum is naturally pure white and thirty times rarer than gold. Because it never changes color or requires replating, it holds a single, exceptional lab diamond in an ice-bright grip that maximizes its true colorlessness and clarity.

Choosing a Lucenjuri platinum solitaire necklace is an investment in absolute longevity. Its heavy, substantial weight offers a grounding, luxurious feel on the neckline, while our premium chain ensures your conscious centerpiece stays flawlessly secure for a lifetime.

How to Style a Platinum Solitaire Necklace

Platinum is sleek, clean, and structural, so we like to keep the styling just as intentional. Pair a platinum round brilliant solitaire necklace with minimalist tailoring or sharp, structural silhouettes. Let that cool, bright metal do the heavy lifting, or pair it with our certified platinum lab diamond martini studs for an echo of unrivaled, high-end brilliance.

Shop Premium Platinum Lab Diamond Solitaire Necklaces at Lucenjuri

When you shop your platinum lab grown diamond solitaire necklace at Lucenjuri, you’re choosing the ultimate standard of sustainable luxury. No plating, no tarnishing, and absolutely zero compromises. We pair this elite, secure metal with the finest certified lab-created diamonds to give you a masterpiece that stands the test of time.

FAQs

Why should I choose platinum over white gold?

Platinum is the absolute pinnacle of fine jewelry. It is naturally pure white (so it never needs to be replated), completely hypoallergenic, and significantly denser than gold, giving your necklace a premium, substantial weight that feels incredibly luxurious.

Does platinum scratch or change color?

Platinum never changes color or turns yellow because it’s naturally white to its core. While it can pick up tiny surface scratches over time, the metal isn't actually lost—it just shifts, creating a beautiful, velvety finish known as a patina. You can easily have it polished back to a high-shine finish anytime.

Is platinum completely hypoallergenic?

Yes. Because our platinum solitaire necklaces are 95% pure precious metal, they are entirely hypoallergenic. If you have highly sensitive skin or a nickel allergy that makes wearing certain gold alloys difficult, platinum is the absolute safest choice.

How secure is a diamond in a platinum necklace setting?

Platinum is incredibly dense and malleable, meaning it doesn't thin out or become brittle over time. Prongs made of platinum hold a lab grown diamond in a lifetime, ultra-secure grip, making it the ultimate choice for protecting your centerpiece stone.

Why does a platinum necklace feel different on the neckline?

Platinum is about 60% heavier than 14K gold. When you put on a Lucenjuri platinum solitaire necklace, you will instantly notice a grounding, weighted, top-tier feel against your skin that screams premium, uncompromised luxury.