A femtosecond laser restructures the surface of the diamond at nanometre scale, without altering any certified parameter.
Through microscopic engraving and advanced marking techniques, we transfer signatures, symbols, dates, patterns, or other bespoke details onto selected areas of the stone.
At a depth of 40 to 450 nanometres, the laser is precise enough to capture the finest detail. Even the irregular strokes of your own handwriting. Each mark is shaped for optical balance and aesthetic integration with the stone.
Traditional inscription graphitizes the diamond, leaving a dark mark. The femtosecond laser works in ultra-short pulses instead. It’s a precise, clean process that leaves no blackening.
By restructuring the diamond, the mark reflects and refracts light into colour. It’s an optical effect no other method can achieve. No two stones catch the light the same way.
The mark is engineered to last as long as the diamond. As the hardest material on earth, it outlasts everything — and so does the mark. Everyday wear, cleaning, and time do nothing to it.
Diamond ID is built on over a decade of experience in diamond identification and technological innovation — developed specifically for the diamond industry, by people who understand it.
This is a partnership process — you define the concept, we take care of the execution. From first contact to a finished stone in just 3 to 5 days.
Tell us what you have in mind — a product idea, collection direction, or brand element. We’ll get in touch to discuss the technical and aesthetic possibilities.
Share your inspiration or creative direction. Together, we refine and shape the concept until it reflects exactly what you have in mind.
Before the marking process begins, we prepare a visualization showing placement, proportions, and optical balance on the stone.
With your approval, we apply the personalization using the femtosecond laser. The stone is returned within
3 to 5 days.
Traditional inscription has been the industry standard for decades. This table shows exactly how the femtosecond process differs, technically and visually.
| Parameter | Traditional inscription | Diamond ID |
|---|---|---|
| Laser type | IR / UV | Femtosecond (fs) |
| Mechanism | Graphitization | Ablation |
| Mark depth | Surface (7–10 μm) | 40–450 nm |
| Energy delivery | Continuous / long pulse | Ultra-short pulse (10−15 s) |
| Thermal effect | High (heat diffusion present) | Minimal (below thermal diffusion limit) |
| Appearance | Standard monochrome mark | Colourful optical diffraction |
| Placement | On the girdle | Selected areas |
| Visibility | 10× loupe | Naked eye |
| Removal | Polishing | Diamond abrasive disc only |
From a simple symbol to a handwritten signature, a custom pattern, or a bespoke graphic — the technology translates whatever you envision directly onto the diamond.
The process does not alter the stone’s weight, clarity, colour, or brilliance. Every parameter that appears on the certificate remains unchanged. To confirm this independently, we submitted our stones for assessment to {{certification body}} — the most respected grading authority in the industry. For the complete technical assessment, visit our certification page.
Certification & complianceOur engineering team is here to answer technical questions and help you assess the possibilities for your product.
We'll get back to you within two working days.
