Lab-Grown Floating Diamond Necklace
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Lab-Grown Floating Diamond Necklace:
- 21.07ct of round brilliant lab-grown diamonds
- Individual 4-prong open-set mounts
- Open spacing between each stone (floating diamond construction)
- DEF color, VS clarity, excellent cut
- 18-inch length (princess length, sits below the collarbone)
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Lead Time
If the item is not in stock, please allow 2-4 weeks for delivery.
Complete Description
A lab-grown diamond necklace where each stone floats independently on the neckline — 21.07 carats of round brilliant diamonds set in individual 4-prong mounts with open space between each stone, creating a constellation of light rather than a solid line. Available in 14k yellow, white, or rose gold. Every diamond is hand-selected for DEF color and VS clarity with an excellent cut grade.
The open spacing between stones is the defining characteristic of this design. A traditional tennis necklace sets diamonds edge-to-edge in a continuous band; here, each diamond has its own breathing room. Worn on the neck, the individual stones appear to float — each catching light independently as you move, rather than reading as a single unified strip of brilliance. Up close, you see each diamond as its own element; from across the room, the necklace reads as a delicate arc of light.
At 18 inches, the necklace sits at the princess length — just below the collarbone — though the open construction and relatively fine scale means it wears lighter and more delicate than a 21-carat continuous tennis necklace would suggest.
How it wears
The floating diamond necklace works across a wider range of occasions than a traditional tennis necklace — the open construction reads more delicate and contemporary, making it equally at home with a white t-shirt as with evening wear. It layers exceptionally well: because each stone has space around it, adding a longer pendant or a finer chain beneath doesn't create visual competition. Pair with simple studs or a single hoop — the necklace does its own quiet work.
Metal choice: white gold makes the diamonds appear to float on nothing, emphasizing the airy quality of the design; yellow gold adds warmth and grounds the stones with a warmer visual anchor; rose gold creates the most romantic, soft-toned version.
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Frequently Asked Questions
Unlike a traditional tennis necklace where diamonds are set edge-to-edge in a continuous band, this necklace sets each diamond in its own individual 4-prong mount with visible open space between each stone. The effect when worn is that the diamonds appear to float on the neckline — each catching light independently as you move, rather than reading as a single solid strip. The open spacing creates a lighter, more airy silhouette than a continuous tennis necklace.
Diana M's classic lab-grown tennis necklace sets diamonds edge-to-edge in a continuous line — the stones sit close together and the necklace reads as a solid band of brilliance. This floating diamond necklace sets each stone individually with open space between each diamond, creating a more delicate, constellation-like look. Both are 4-prong settings; the difference is the spacing and visual effect.
The necklace is 18 inches, which sits at the princess length — just below the collarbone, above the bust. The open construction and delicate scale mean it wears closer to the throat than a heavier tennis necklace of the same length, as seen in the on-neck photography above.
Yes — 21.07 carats is the total weight of all round brilliant diamonds set across the full 18-inch necklace. This is one fixed configuration; there are no smaller or larger carat variants.
Yes. Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds — the only difference is how they're produced. They're graded on the same 4Cs standard (cut, color, clarity, carat weight) and have the same hardness (Mohs 10) and brilliance.
Clean with warm water, a drop of mild dish soap, and a soft brush — paying attention to the base of each prong where oils and residue can collect. Store flat or hanging to prevent kinking. Professional cleaning and inspection once a year is recommended for fine jewelry worn regularly. If any prong appears loose or bent, have it repaired before wearing to prevent stone loss.