Ondine Ring – Marquise-cut laboratory-grown diamond – Customizable

A marquise diamond embraced by fluid lines, balancing movement and brilliance.

The Ondine ring highlights a marquise-cut laboratory-grown diamond, whose elegant silhouette is enhanced by a setting with enveloping curves.

The lines of the band seem to cross around the central stone: one in polished gold, the other accented with a pavé of laboratory-grown diamonds that delicately complements its brilliance.

The contrast between the distinct geometry of the marquise cut and the softness of the curves creates a fluid, contemporary, and singular silhouette.

Both elegant and expressive, Ondine reinterprets the engagement ring with a play of asymmetry and light that gives it its full personality.

Fully customizable, it can be adapted to your desires: choice of carat, metal, ring size, and the possibility of engraving, to create a unique and personal piece of jewelry.

Product details

  • IGI-certified central laboratory-grown diamond
  • Marquise cut
  • Crossed-line setting
  • Pavé of laboratory-grown diamonds
  • Choice of carat and metal
  • Engraving available
  • Customizable model

All our custom jewelry is made to order by our artisans. The production process takes approximately 4 to 5 weeks (5 to 8 weeks for bespoke pieces).

€1.890,00

A CERTIFICATE OF EXCELLENCE ISSUED BY THE IGI
Each laboratory-created diamond is inspected by the IGI - International Gemological Institute - according to the 4Cs: cut, color, clarity, and carat weight...

  • Shipped from France
  • 100% secure payment
  • Tracked and insured delivery
  • Delivered with its presentation box, gift bag and IGI certificate
  • Free delivery
  • Products in stock shipped within 2–5 days
  • Custom jewelry is made to order (production time is 4 to 5 weeks, 5 to 8 weeks for bespoke pieces)

Your custom creation with Diamelys

Diamond selection

We offer IGI-certified lab-grown diamonds, complete with visuals and certificates, and assist you in choosing the most suitable stone for your project.

3D Design and Visualization

Together, we define the setting, metal, and proportions, then you receive a 3D visualization to approve every detail before manufacturing.

Workshop manufacturing

Once the design is approved, your jewel is carefully crafted in the workshop, meticulously checked, then packaged in a box before secure delivery.

Send us your dream design

Send us a photo of your dream design and we will offer you the best price within 24 hours.

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Why choose a lab-grown diamond?

The lab-grown diamond invites us to rethink creation

Same brilliance, same hardness, same durability as a natural diamond.

The difference is not visible to the naked eye. It lies in its origin, and in the freedom it allows.

Unlike moissanite or zircon

DIAMELYS lab-grown diamonds retain the very essence of diamond.

Same carbon composition, exceptional hardness, pure and timeless brilliance — durability designed to last a lifetime.

Each lab-grown diamond is certified by IGI

Evaluated according to the 4Cs and identified by a unique engraving number, perfectly conforming to its certificate.

Choosing DIAMELYS means choosing an authentic and fully embraced diamond.

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