An Introduction
Discover what sets Van Deijl Jewellers apart in the world of fine jewellery – our commitment to excellence, integrity, and unparalleled customer service.
Since 1964, we have been dedicated to crafting exquisite pieces of jewellery that combine timeless elegance with modern sophistication. Our meticulous attention to detail, ethical sourcing of materials, and a team of highly skilled gemmologist, artisans and designers ensure that each piece meets the highest standards of quality.
Uncover the unique qualities and values that make Van Deijl Jewellers and our diamonds a symbol of luxury and integrity.
VDJ Integrity
At Van Deijl integrity is the cornerstone of our business. From the sourcing of our raw materials to the delivery of our final products, we uphold the highest ethical standards every step of the way.
Our commitment to integrity means that we prioritize transparency, fairness, and honesty in all our dealings, whether with suppliers, employees, or customers.
We firmly believe that sustainable success is built on a foundation of trust, and we strive to earn that trust every day by consistently delivering exceptional quality products and services. This can be seen in everything we do but especially in the quality of our diamonds.
At Van Deijl, integrity is not just a value we uphold; it’s the guiding principle that shapes everything we do. Guided by these principles, we aim to help our clients make well-informed decisions when choosing a diamond that could potentially become a cherished heirloom.
At Van Deijl Jewellers, we hold our clients in the highest regard, and we are passionate about supplying them with the finest quality diamonds available in the market.
When all other factors are equal, the cut is the most important factor to consider when choosing a diamond. The cut grade looks at the overall design of the diamond, taking into consideration weight relative to diameter, symmetry of facet arrangement, girdle thickness and quality of polish.
In the diamond industry, the pricing of a diamond is determined by the 4 C’s: Carat, Colour, Clarity and Cut. The carat, colour and clarity of a stone, may be selected to fit a specific budget; however, the cut of a diamond can affect the value by more than 50%. When a retailer prioritises carat weight over the cut of the stone, the brilliance will be compromised. It is thus important to note that, no matter the colour or clarity grade of a diamond, if not properly cut, the diamond will appear dull. Conversely, a properly cut diamond will reflect light for optimum brilliance.
All diamonds from 0.30ct bought from Van Deijl will be accompanied by an independent laboratory certificate.
The Gemmological Institute of America (GIA) and European Gemological Laboratory South Africa (EGL) are the foremost authorities in independent certification and provides the most accurate and consistent diamond grading reports. For this reason, we provide these certificates with diamonds bought from Van Deijl.
At Van Deijl, we strive for the highest accuracy possible in identifying laboratory-grown diamonds. The influx of lab-grown diamonds in the jewellery industry, combined with the significant value differences, has heightened the demand for conclusive tests to distinguish them from mined diamonds. In the diamond industry, no single test is 100% conclusive in identifying a lab-grown diamond. Therefore, we use a combination of two screening methods and five confirmation tests, along with the gemological expertise of at least two gemmologist, to determine whether a diamond is natural, or lab created. Below is our in-house laboratory process for the screening and identification of lab-grown diamonds.
DIAMOND SCREENING:
In diamond screening we use the GIA Diamond iD100 and the Smartpro Aura V2.
GIA iD100®:
This device analyses the absorption of infrared light to detect differences in chemical composition and crystal structure. It compares the stone’s data against a comprehensive database, providing a clear result that either confirms the diamond as natural (“Pass”) or identifies it as a possible lab-grown diamond or simulant (“Refer”).
SmartPro Aura Diamond Screener:
Utilizes shortwave UV light and phosphorescence to distinguish between natural and lab-grown diamonds. This quickly screens diamonds, providing an initial assessment to identify potential lab-grown diamonds.
IDENTIFICATION TECHNIQUES:
Fourier-Transform Infrared (FTIR) Spectroscopy: GemmoFTIR
Analyses the absorption of infrared light by the diamond. Identifies the diamond type based on specific impurities and structural features distinguishing natural diamonds from synthetic ones.
Photoluminescence Spectroscopy: GemmoRaman-532SG
Measures the light emitted by a diamond when exposed to UV light. Reveals distinct patterns of luminescence unique to HPHT and CVD diamonds.
Raman Spectroscopy: GemmoRaman-532SG
Utilizes laser light scattering to provide information on the diamond’s crystal lattice and its essential chemistry. This differentiates between natural and lab-grown diamonds based on subtle structural differences.
UV-VIS-NIR Spectroscopy: GemmoSphere
Examines the absorption of ultraviolet, visible, and near-infrared light. Identifies specific absorption bands characteristics due to trace elements seen in lab-grown diamonds.
Cross-Polarization Techniques:
Using cross-polarized light under magnification to examine internal strain patterns within diamonds, revealing growth structures and patterns indicative of synthetic processes.
Gemmological Expertise:
Visual Inspection: Qualified gemmologist assess the diamond using magnification to identify growth patterns, inclusions, and other features unique to natural or synthetic diamonds.
CONCLUSION
Integrating results from multiple screening, spectroscopic techniques and gemmological expertise ensures accurate identification and disclosure of lab-grown diamonds. We have invested heavily in equipment and the education of our personnel to ensure the proper disclosure and detection of all lab grown diamonds. It is of the utmost importance for us to disclose every lab grown diamond we encounter or sell to protect our clients and maintain our integrity.