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Build your perfect tennis necklace from 2.5M+ certified lab diamonds, in the length and carat weight that's right for you — without the retail markup.
From sourcing to custom manufacturing, we help jewelers and retailers scale faster with high-quality lab-grown diamond jewelry.
Our curated collection of finished necklaces means you find the perfect length and weight without the wait.
Absolutely beautiful necklace with outstanding quality. The seller quickly resolved a small issue, and the adjustable design pairs perfectly with my matching tennis bracelet.
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Excellent quality and customer service! I’m thrilled with my diamond tennis necklace. Susan was incredibly helpful, and I’ll definitely return for more jewelry.
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I ordered the 3mm version for my first order. It was beautiful. I contacted the support and asked about a custom order in 4mm. Susan was helpful; the necklace is perfect!
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Gorgeous necklace with beautiful, prismatic, eye clean diamonds. Arrived lightning fast and the Susan was responsive, friendly, and helpful. Highly recommended!
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Whether you visit our showroom or connect online, we make diamond shopping personal, easy, and tailored just for you.
These necklaces space lab-grown diamonds at intervals along their 16-inch length, allowing each stone’s individual brilliance to stand out rather than merging into one continuous line of sparkle running the full length of the chain. That deliberate spacing gives the piece a bolder, more sculptural quality than a fuller tennis-style necklace of the same total carat weight.
To give you an idea, at 6.00 total carats across 16 inches, a Loose Grown Diamond’s necklace is priced around $4178 in 14k white gold, $6432 in 18k white gold, and $7146 in platinum. Because this total carat weight is distributed across fewer, larger stones rather than dozens of smaller ones, this design actually runs higher than our tennis necklace in platinum, reflecting the added rarity and value larger individual diamonds carry.
At 16 inches, these necklaces sit at a classic choker-adjacent length, resting right at or just below the collarbone for most wearers and neck shapes and sizes. This proportion tends to showcase the spaced diamond design particularly well, since each stone remains visible rather than disappearing into a longer drape or chain.
The necklace’s bolder, more deliberate diamond placement makes it a strong standalone statement piece, though it can also be layered with a finer chain for added dimension and depth to the overall look. Its spaced design leaves enough visual room to pair without feeling cluttered or overly busy on the neckline.
Metal choice plays a meaningful role in both appearance and price for this design. Platinum delivers a naturally white, durable finish well suited to a piece meant to last for years, while 14k and 18k white gold provide a similarly bright look with different gold content underneath the finish.
Loose Grown Diamond can adjust this necklace’s lab diamond count, spacing, total carat weight, or chain length to fit your vision precisely and completely. Share your preferences or a reference photo, and our team will create a piece that matches what you have in mind, with updates throughout the process.
A lab grown diamond necklace features diamonds created in a laboratory rather than mined from the earth. Lab grown diamonds have the same chemical and physical properties as natural diamonds and offer the same characteristic brilliance.
Yes, a lab grown diamond necklace can be a thoughtful gift for birthdays, anniversaries, and other special occasions. It offers the beauty of a real diamond with a range of styles and price options.
Yes, matching lab grown diamond necklace and earring sets are available in different styles. Some sets come ready-made, while others can be customized to create a coordinated look.
Yes, a lab grown diamond necklace can work with both casual and formal outfits. A simple design can add a subtle touch to everyday clothing, while more detailed styles can complement formal or evening wear.
Since this design uses fewer but larger lab created diamonds to reach the 6.00-carat total than the tennis style, each diamond has more carat weight, which is why this platinum pendant costs more than the platinum tennis necklace.
The placement of diamonds allows this necklace to have a free drape while still showing off each lab-grown diamond rather than one seamless sparkle from start to finish. This makes for a bolder yet elegant statement across the collarbone and neckline.
Yes, for your Loose Grown Diamond can make adjustments to either raise or lower the total carat weight according to your needs and budget to ensure complete satisfaction once this piece is delivered. Just tell us what you have in mind, and we turn your vision into reality from concept to delivery.
While this bold style is perfect for making a statement at an evening event, the classic 16-inch length and elegant style make for a sophisticated yet everyday accessory that many of our clients choose to style both ways.
