Best Places to Buy Lab-Grown Diamond Necklaces

Romantic because it will always be close to the heart, no matter the length. Versatile because it transits effortlessly across styling preferences, outfits, and occasions. Classy because the available styles offer timeless appeal with easy personalization options. Without a doubt, a lab-created diamond necklace can be a rewarding addition to a jewelry collection.

Are you looking for one of the best places to buy lab-grown diamond necklaces? Then, Rare Carat is here to offer a shopping experience like no other with an exclusive collection and customer-first, expert guidance from GIA-certified gemologists.

Let's learn in depth what makes us the go-to retailer for not only diamond necklaces but also all fine diamond jewelry so that you can walk away with the perfect one for you or your loved one.

1. Certified Lab Diamonds with Proper Verification Checks

Mined vs. Lab-Created

If you see all engagement ring styles or all diamond earring styles available at Rare Carat, it becomes clear that opting for a lab-grown diamond instead of a traditional natural diamond doesn't affect the jewelry's aesthetic or design. The same goes for the different necklace styles available.

If you check out the difference between the two diamond types, the first thing you will learn is that both share the same physical, chemical, and optical properties. For this reason, to the untrained eye, both diamonds will appear the same.

So for the necklace, if you opt for the much more affordable and ethical lab diamonds rather than traditional mined stones, you can choose a larger carat weight or better 4Cs specifications without compromising on quality, visual appeal, or budget.

Here’s a general comparison to illustrate the price difference between commonly selected mid-range lab and natural diamond grades, commonly used in neckpieces:

Estimates reflect commonly selected necklace center-stone grades and may vary based on chain style, diamond shape, metal type, and market conditions.

Rare Carat’s Two-Step Verification Process for Certified Diamonds

Apart from the above-mentioned benefits, you can also enjoy a reduced carbon footprint with lab stones. However, all shoppers need to note that the above benefits and more can only be realized if the stone is certified.

Certification not only provides the detailed information required to properly evaluate the diamond in your necklace, but it also gives buyers greater peace of mind.

Whether you're shopping for a tennis bracelet with natural stones or a lab-created diamond necklace, at Rare Carat, all stones are certified by only the top grading institutions of the industry, which include:

• GIA
• IGI
• GCAL

However, our commitment to quality and authenticity does not end here. After a certified diamond arrives at our facility from an ethical, trusted, and recognized source, it undergoes a two-step verification process.

1. At first, we will inspect the diamond's laser inscription on the girdle. This is done using a magnification (60x-110x) process. If there is any discrepancy, the diamond is returned for correction.

2. The last step is to further inspect the diamond's authenticity and quality using professional-grade UV fluorescence machines.

For complete transparency, both steps are captured under the camera. And to our knowledge, we are the only jewelry brand to do this.

If your neckpiece is of the desired quality in terms of authenticity, quality, and value, it ensures a confident and rewarding shopping experience. Rare Carat understands this, and that's why we take such steps for shoppers.

2. High-Resolution Diamond Images and 360° Video Viewing

Aside from certification and verification, another important aspect of buying a lab-created diamond necklace online is visual transparency.

Whether it's a necklace or a diamond, at Rare Carat, you will find only high-resolution imagery. You are also getting 360° high-resolution, unedited, and unretouched videos captured using professional tools of the highest standard used in the global jewelry trade.

This ensures you can get the clearest view of the diamond or the neckpiece from any angle. This creates the opportunity for a well-informed online shopping experience, as you can understand how visible any imperfections (if any) are and how the diamond will really look in real life.

3. Choosing the Right Lab Necklace Style

Here is a quick style comparison guide that can help you decide which popular style will suit you and your preferences, lifestyle, requirements, or personality the best:

4. Rare Carat’s 3 Most Popular Lab-Created Diamond Necklace Designs

We offer one of the largest fine jewelry collections of any jeweler in the USA. With over 2,500 styles available, finding the right necklace design becomes simple and streamlined—not overwhelming—thanks to our powerful diamond and jewelry search filters and smart recommendation engine.

Every piece is then handcrafted with care and precision by skilled jewelers at our advanced workshops in New York and New Jersey.

To further assist in finding the right style for you, here’s a quick look at some of the bestselling lab necklaces for a bit of guidance and inspiration:

• The Simple and Timeless Solitaire

When buying diamond jewelry, the goal is always to find a design that effortlessly highlights the stone’s signature beauty and sparkle. For this reason, solitaire necklace styles have become a classic. With customizable carat-size options at Rare Carat, finding one that fits your preference and budget is seamless.

Shop by Solitaire Necklace Carat Size

• 0.25 Carat

• 0.5 Carat

• 1 Carat

• 1.5 Carat

• The Delicate and Sparkly Pavé

These elegant pieces can add a sophisticated sparkle to even an everyday outfit. This necklace setting style uses multiple diamonds set into it to create a stunning effect. It is perfect for those looking for a subtle way to make a statement.

Shop by Pavé Carat Size

• 0.25 Carat

• 0.5 Carat

• 1 Carat

• 1.5 Carat

• The Trendy but Subtle Hidden Halo

Prefer hidden details? Or dainty, art-inspired designs? Then, this necklace setting style will definitely be the perfect fit. The pieces feature a circle of smaller lab stones enclosing the center stone. This detail will not be prominently visible at first (quick) glance, which adds an element of surprise to the design, a contributing factor to its massive popularity.

Shop by Hidden Halo Carat Size

• 0.25 Carat

• 0.5 Carat

• 1 Carat

• 1.5 Carat

5. Expert Gemologist Guidance for Necklace Selection

The fact that customers can personally speak with a certified gemologist is what sets Rare Carat apart. And to add the cherry on top, this is a completely free service offered by us.

Our team consists of more than 100 GIA-certified gemologists. They are here to provide you with advice that is honest and genuine. This will ensure that finding a style or customizing a design is always confident and satisfactory.

Their aim is not to sell but to assist. The advice you receive will be unbiased and based on real expertise. Their advice is always geared towards helping you select a lab diamond necklace that will look absolutely stunning in person.

6. Finding the Perfect Necklace Made Easy with Customization

Customizing the necklace according to your taste, lifestyle, and needs can help you to find the best piece that not only fulfills its purpose but also becomes your favorite. Therefore, for all the lab-created diamond necklace buyers, easy access to all the popular options for a completely personalized and seamless shopping experience is a must.

By Diamond Shape

Even though a solitaire diamond necklace is one of the most popular choices, buyers looking for an edgy or modern look tend to avoid it. However, with simple customization, even a timeless design can be customized to give it a more contemporary look.

Take a look at the image of two lab necklaces below. Both share the same bezel-set solitaire design. However, each comes with a different diamond shape (round and emerald), allowing for two different looks with their own aesthetics.

Some of the other popular lab diamond shapes include:

• Asscher

• Heart

• Marquise

• Oval

• Radiant

• Cushion

• Pear

• Princess

By Chain Length

Changing the chain’s length can also ensure a design truly fits your lifestyle. For example, a person with an active lifestyle would prefer a short-length chain over a longer-length design because it sits closer to the neck, which restricts its movement. Long chains, on the other hand, are more free-flowing.

At Rare Carat, you can choose designs with different chain lengths. Besides, some designs even come with adjustable chains (for example, this 16- to 18-inch adjustable chain for a stunning everyday solitaire from our bestselling category).

By Carat Weight

Similarly, customizing the carat weight ensures you are buying a piece that is best suited to your budget. Check out the options available at Rare Carat:

• 1 Carat Lab Grown Diamonds
• 2 Carat Lab Grown Diamonds
• 3 Carat Lab Grown Diamonds
• 4 Carat Lab Grown Diamonds
• 5 Carat Lab Grown Diamonds
• 6 Carat Lab Grown Diamonds
• 7 Carat Lab Grown Diamonds
• 8 Carat Lab Grown Diamonds
• 9 Carat Lab Grown Diamonds
• 10 Carat Lab Grown Diamonds

By Setting Metal

Setting metal customization is essential, as it ensures you can make the piece as durable as possible. But do you know that personalization with the help of the setting metal and its unique color hue is one of the easiest ways to make a design suit your personality?

Here is a quick metal comparison guide:

• Platinum

Being rare, they are expensive; however, a lab necklace with a platinum setting will be sturdy and durable. If you are planning to wear it every day, then you can customize it with platinum.

• White Gold

This customization choice is popular among those who are looking for a trendy, sleek, modern aesthetic for their jewelry. However, they are especially ideal for those looking for an affordable yet similar alternative to platinum.

• Yellow Gold

This is the most common yet popular choice and is perfect for bringing a timeless appeal to any design. Currently, it is the most trendy option for the 2026 season.

• Rose Gold

Timeless yet fun, romantic, and unique, the rose gold necklace setting metal option is truly one-of-a-kind.

At Rare Carat, customers are guided every step of the way to ensure they can find a piece that truly reflects their style preferences and requirements.

7. A Seamless, Start-to-Finish Experience Like No Other

We are proud to be Trustpilot’s top-rated online jeweler for two consecutive years. Where direct customer feedback speaks louder than anything else, with over 3,000 verified reviews, this achievement is a true benchmark of trust in this industry. It is a testament to the innovation and dedication we put into our pre- and post-sales processes, which include:

• 100% Money-Back Guarantee
• Free 30-Day Returns
• Premium and Protective Packing and Branded Box
• Free Shipping
• A Lifetime Warranty on all lab-created diamond necklaces sold

8. Why Choose Rare Carat’s Necklaces with Lab-Grown Stones

Whether you are searching for a striking lab tennis necklace or the subtle shine of a hidden halo piece, finding what you are looking for is always the reward. And with easy access to transparent information, competitive pricing, high quality, attention to authenticity, and customer-first services, finding the perfect lab-grown diamond necklace is an easy affair.

Every aspect of the lab diamond jewelry buying process at Rare Carat is in place to ensure that your purchase is an informed and confident one.

Shop By Necklace Style

• Diamond Heart Necklaces

• Small Diamond Necklaces

• Cross Pendant Necklaces