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The Best Lab Grown Diamond Necklace for Sustainable Fashion

Buyer's Report GUIDE Team
Written By Buyer's Report GUIDE Team
Last updated: Apr 17, 2025, 06:37 PM
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highly rated lab grown diamond necklace

In this exciting era of sustainable fashion, lab-grown diamond necklaces have made a dazzling entry, and it’s not hard to see why. These top-rated gems are redefining luxury in a way that’s both stylish and responsible. Imagine slipping on a gleaming necklace, each diamond meticulously grown in a lab using cutting-edge technology. The look and feel of these necklaces are just as fabulous as a mined diamond minus the environmental impact. Noteworthy for their immaculate beauty and ethical creation, the highest-rated lab-grown diamond necklaces of 2025 cater to a diverse range of tastes, from the bold and extravagant to the understated and elegant. Whether you’re a seasoned jewelry lover or just beginning your diamond journey, this guide will shine a light on the many facets of these stunning, sustainable creations.

View all Contents
  • Lab Grown Diamond Necklaces: A Buying Guide
    • Quality Check
    • Carat Weight
    • Cut Quality
    • Color Grade
    • Clarity Grade
    • Price
    • Retailer Reputation
  • Lab Grown Diamond Necklace FAQs
  • Elevating the Shopping Game
  • Contributors
  • Related Reads

Our Top Picks

  • La Joya Lab-Grown Diamond Necklace: Best Overall (Shop Now) →
    Read more about this lab grown diamond necklace ↓
  • Cate & Chloe Lab-Grown Diamond Necklace: Best for Anniversary Gifts (Shop Now) →
    Read more about this lab grown diamond necklace ↓
  • La4ve Diamonds Lab-Grown Diamond Necklace: Most Customizable (Shop Now) →
    Read more about this lab grown diamond necklace ↓
  • CNUGGCH Lab-Grown Diamond Necklace: Best for Weddings (Shop Now) →
    Read more about this lab grown diamond necklace ↓
  • TUHE Lab-Grown Diamond Necklace: Best for Classic Jewelry Lovers (Shop Now) →
    Read more about this lab grown diamond necklace ↓

Reviewing the Best Lab Grown Diamond Necklaces in 2025

La Joya Lab-Grown Diamond Necklace

Best Overall
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Unearth the timeless charm of the La Joya Lab-Grown Diamond Necklace. This option is a splendid piece of jewelry that truly elevates your style. This classic solitaire necklace is every girl’s must-have, designed with a sparkling lab-grown diamond nestled in a solid gold 4-prong basket and complemented by a gold chain. The chain’s adjustable length allows you to wear it at 16, 17, or 18 inches, catering to your unique style and preference. It’s the perfect piece to light up your everyday look or add an exquisite touch to your special evening events.

Not only does this necklace dazzle with its beauty, but it also beams with ethical superiority. The pendant features a lab-made diamond that mirrors the brilliance of a natural diamond without the associated guilt of environmental harm or supporting conflict. The diamond is GH color and SI clarity, a notch above lower quality diamonds. Each pendant is assessed and authenticated by expert gemmologists from independent laboratories and comes with a unique certificate you can verify online. Whether it’s a gift for your loved one or a special treat for yourself, this lab-grown diamond necklace is the way to go. It’s a spectacular blend of exceptional diamond quality, ethical sourcing, and affordability, making it the top overall choice on this list.

Why It’s a Best-Seller
  • Perfect for daily wear and special occasions
  • Excellent price for a lab-grown diamond
  • Outstanding cut and clarity
What to Note
  • Chain may knot easily
  • Chain feels cheap

Cate & Chloe Lab-Grown Diamond Necklace

Best for Anniversary Gifts
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If you’re looking for a piece of jewelry that adds a touch of glamor to any outfit, you’ll love the Cate & Chloe Lab-Grown Diamond Necklace. It’s a stunning piece that boasts a cluster solitaire oval cut design, making it perfect for those who appreciate a little sparkle. The pendant, encrusted with beautiful lab-grown diamonds, captures light from every angle and guarantees to turn heads wherever you go.

This necklace is not just about looks, though. It’s also perfect for gifting, especially for anniversaries. How could any girl resist a stunning piece that effortlessly combines elegance and trendiness? The best part is that it’s a lab-grown diamond, which means it’s ethically sourced and eco-friendly. This feature puts it on the must-have list for the environmentally-conscious fashionista. Whether you’re shopping for a friend or treating yourself, this lab-grown diamond necklace is a top-quality piece that blends style, sustainability, and sparkle.

Why It’s a Best-Seller
  • Resembles natural diamonds
  • Compliments any outfit
  • High-quality construction and materials
What to Note
  • May discolor over time
  • Chain breaks easily

La4ve Diamonds Lab-Grown Diamond Necklace

Most Customizable
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If you’re looking to enhance your jewelry collection, this option is the perfect piece for you. The La4ve Diamonds Lab-Grown Diamond Necklace is a thing of beauty. Crafted in 14K white gold, it has an elegant appeal that’s hard to resist. The pendant features a stunning, lab-grown diamond solitaire weighing up to three carats. The diamond, set in a secure four-prong setting, is of J color and VS-SI clarity, making it a dazzling centerpiece. This necklace is a perfect blend of modern technology and classic design, making it a must-have for every jewelry lover.

The diamond pendant comes with an 18-inch box chain, making it ready to wear or gift. It’s polished to a bright shine, guaranteeing it will catch the light from every angle. It’s a versatile piece that adds a touch of elegance to both casual and formal outfits. The necklace comes in a gift box, so if you’re thinking of surprising someone special, this could be it. This option is not just another lab-grown diamond necklace but a statement piece that stands out.

Why It’s a Best-Seller
  • High clarity diamond
  • Matches engagement rings
  • Good price for the value
What to Note
  • Chain is too thin and delicate
  • No certificate of authenticity

CNUGGCH Lab-Grown Diamond Necklace

Best for Weddings
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The CNUGGCH Lab-Grown Diamond Necklace has brought to life a diamond pendant necklace that perfectly blends classic elegance with modern design. Its luxurious diamond appearance is nothing short of awe-inspiring. It’s not just a piece of jewelry. It’s also a work of art, the kind of accessory that can take even the simplest attire from regular to royal.

This necklace features stunning quality that is perfect for a wedding day. Each stone boasts a stunning clarity that rivals a natural diamond. The carat range gives you the ability to choose a size that fits your preference. The fact that it’s lab-grown simply means you’re partaking in the ever-growing trend of sustainable fashion choices. This necklace is a remarkable piece that any woman would be thrilled to receive. Whether it’s for your wife, soulmate, mom, girlfriend, or girl, this necklace is the ultimate statement of love and admiration. Remember this lab-grown diamond necklace the next time you’re in a dilemma about the perfect gift to give. It’s a timeless piece that promises to be a dazzling addition to any jewelry collection.

Why It’s a Best-Seller
  • Clear, bright, and luxurious look
  • Appears more expensive than it is
  • Perfect accessory for dressing up
What to Note
  • Lack of serial number on pendant
  • Presence of inclusion in diamond

TUHE Lab-Grown Diamond Necklace

Best for Classic Jewelry Lovers
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Get ready to dazzle and shine in a new and exquisite way. The TUHE Lab-Grown Diamond Necklace is an absolute stunner. It’s the perfect blend of high-quality materials and glamorous design, made from lab-created diamonds set in 18K white gold plated sterling silver. The round Moissanite pendant catches light from every angle, ensuring a sparkly appearance that you’ll love. It’s attached to a high-quality chain, perfectly accentuating the neckline and making it a versatile piece for any ensemble.

If you’re a classic jewelry aficionado, this is the piece your collection has been missing. This diamond solitaire necklace strikes the ideal balance between timeless elegance and modern sophistication. The lab-grown diamond’s high quality gives it a brilliant sheen that rivals any naturally mined diamond yet at a more affordable price. Why not indulge in this luxurious and guilt-free treat? This lab-grown diamond necklace will fulfill your desire for classic jewelry and take your style quotient a notch higher.

Product Pros
  • High-quality, realistic appearance
  • Comes with user-friendly clasps
  • Pendants are very sparkly
Product Cons
  • Chain quality is poor and weak
  • Larger carat sizes may look unreal

Lab Grown Diamond Necklaces: A Buying Guide

Buying a lab grown diamond necklace isn’t just a purchase. It’s an investment in a piece of jewelry that wears the elegance of a real diamond while being ethically produced and affordable. Navigating the world of lab-grown diamonds can be tricky. This guide provides practical, easy-to-understand advice on how to find the perfect lab-grown diamond necklace.

Quality Check

Though lab grown diamonds bear the same physical and chemical properties as their mined counterparts, the quality can differ. You want to invest in a necklace that offers the best quality. Look for diamonds graded by reputable gemological labs. The Gemological Institute of America (GIA), International Gemological Institute (IGI), and American Gem Society (AGS) are known for their strict grading practices. Always request a grading report when purchasing your necklace.

Carat Weight

Gauging the right diamond size for a necklace is crucial. Diamond weight is in carats, with 1 carat equal to 200 milligrams. The higher the carat, the larger the diamond. Size isn’t everything. The beauty of a lab-grown diamond necklace also lies in its design and how the diamond sits in the setting. A smaller, well-cut diamond can be just as captivating as a larger stone.

Cut Quality

The cut of a diamond impacts how it catches the light, creating that coveted sparkle. Excellent or ideal cuts yield the most brilliance. You’ll find various shapes for lab grown diamonds, from the classic round to more unique styles like princess, emerald, or pear. The choice of cut largely depends on your personal preference.

Color Grade

Lab grown diamonds, like natural ones, come in a variety of colors. The most sought-after are those in the colorless to near-colorless range (marked as D-J on the diamond color chart). Opting for a slightly colored diamond (K-Z) can give your necklace a unique touch without compromising too much on the sparkle.

Clarity Grade

Clarity refers to the absence of inclusions and blemishes. High-clarity diamonds are premium, but without a magnifying lens, it’s difficult to spot the difference between a flawless (FL) and slightly included (SI1-SI2) diamond with the naked eye. For your lab grown diamond necklace, a good clarity grade to aim for is VS1-VS2, guaranteeing a virtually flawless appearance.

Price

Lab grown diamonds are up to 40% less expensive than mined diamonds, making them a cost-effective choice. Prices can still vary. Comparing prices from different retailers will help you get the best value for your money. A higher price tag doesn’t equal a superior necklace.

Retailer Reputation

Ensure you’re buying from a reputable retailer. Look for customer reviews and the retailer’s policies on returns, upgrades, and warranties. A reliable retailer will also provide detailed information about the lab-grown diamond’s origin and the processes used to create it.

Finding the ideal lab grown diamond necklace involves understanding the basics of diamond quality and navigating through your choices, but the effort is well worth it. Nothing beats the thrill of seeing your lab-grown diamond necklace sparkle, knowing you have an eco-friendly and gorgeous diamond.

Lab Grown Diamond Necklace FAQs

What is a lab grown diamond necklace?

A lab grown diamond necklace is a piece of fine jewelry that features diamonds from a laboratory setting. These diamonds are identical to naturally mined diamonds in terms of their physical properties and appearance.

How is a lab grown diamond different from a natural diamond?

Lab grown diamonds and natural diamonds are essentially the same in terms of their physical and chemical properties. The only difference is their origin. Lab grown diamonds come from a controlled laboratory environment, while natural diamonds come from the earth.

How do I maintain and care for my lab grown diamond necklace?

To keep your lab grown diamond necklace sparkling, you should clean it regularly. You can do this at home using a soft toothbrush, warm water, and mild dish soap. Gently scrub the diamonds and the metal. For deeper cleanings, you may want to take your necklace to a professional jeweler.

Is the value of a lab grown diamond necklace the same as a natural diamond necklace?

While lab grown diamonds are physically and chemically identical to natural diamonds, they tend to be less expensive. This is primarily because the cost of producing lab grown diamonds is lower than mining natural diamonds. They are just as beautiful and durable as natural diamonds.

Can a jeweler tell the difference between a lab grown diamond and a natural diamond?

Without specialized equipment, it is nearly impossible for a jeweler to tell the difference between a lab grown and a natural diamond just by looking at it. Certain laboratory tests can reveal the diamond's origin.

What if my lab grown diamond necklace needs repairs?

If your necklace needs repairs, take it to a professional jeweler. It's important to note that not all jewelers may be experienced in working with lab grown diamonds, so find a jeweler who is.

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Buyer's Report GUIDE Team
Buyer's Report GUIDE Team
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