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Key advancements in XRF focus on using high-resolution synchrotron-based techniques for trace element analysis

The diamond market is seeing mixed activity across the globe, driven by holiday shopping in the US and traditional shutdowns in India.

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Recent advances in XRF in diamonds focus on using high-resolution, synchrotron-based techniques for trace element analysis, chemical state analysis of impurities, and identifying synthetic diamonds. Developments include using XRF with other techniques like X-ray absorption spectroscopy (XAS) for more complete analysis and using nanoprobes for spatial resolution down to 50 nm. Researchers are also creating methods to analyze trace elements in synthetic diamonds with high precision, sometimes achieving concentrations far greater than in natural diamonds.  

Key advancements

  • High-resolution spatial mapping: 

Synchrotron XRF, especially with nanoprobe techniques, provides nanoscale mapping of elemental distributions within a diamond, revealing the relationship between elements and growth sectors. 

Using techniques like XANES (X-ray Absorption Near Edge Structure) spectroscopy alongside XRF, researchers can determine the chemical state and site of impurities within the diamond lattice (e.g., the location of nickel atoms). 

  • Analysis of synthetic diamonds: 

XRF is crucial for characterizing synthetic diamonds, including:

  • Trace element analysis: Detecting and quantifying trace impurities (like Co and Mn) incorporated from metallic solvents used during synthesis. 
  • Synthetic vs. natural identification: Identifying synthetic diamonds based on their trace element composition, which differs from natural diamonds. 
  • Detecting intentional doping: Synthesizing and analyzing diamonds with specific doped atoms, like Europium (Eu), to achieve high concentrations (e.g., 51 ± 5 ppm) for specific properties. 
  • Integration with other techniques: 

XRF is increasingly combined with other techniques like X-ray diffraction (XRD) and XAS to provide more comprehensive elemental and structural information about the sample. 

  • Gemological applications: 

In the gemological industry, XRF is used to distinguish natural from synthetic diamonds and to detect treatments like fracture filling by showing the elemental composition of the filling agents. 

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Mahesh Notandass Jewellers & Vandals Join Sotheby’s and Somya Khurana For An Evening Of Mindful Living and Exceptional Diamonds In The Swiss Alps

An Exclusive Alpine Gathering Brings Together Mindful Living, Conscious Reflection and Extraordinary Jewellery Artistry, Featuring A Spectacular Emerald and Diamond Glove and A Statement Scarf Adorned With Hundreds Of Natural Emeralds and Diamonds

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Sotheby’s Switzerland, wellness curator Somya Khurana, Mahesh Notandass Jewellers and Vandals come together this season for a one-of-a-kind evening that pairs conscious living with uncompromising craftsmanship. This is an evening of mindful reflection, followed by an exclusive presentation of Mahesh Notandass & Vandals’ most extraordinary jewellery, including a glove made of emeralds and diamonds.

Hosted against the calming backdrop of the Col de la Croix mountain pass, the gathering will unfold at the storied Chalet Roy Alps Domaine de Rochegrosse, in the alpine resort town of Villars-sur-Ollon, a setting chosen deliberately for its stillness, its altitude, and its distance from the noise of the everyday. The evening begins with a curated wellbeing experience helmed by Somya Khurana, centred on mindfulness and conscious reflection, an invitation for guests to arrive fully present before the evening centrepiece is revealed.

For over a century, Mahesh Notandass Diamond Jewellers has been synonymous with rare stones, master craftsmanship and design that transcends trend; jewellery built not merely to be worn, but to be inherited. This exclusive presentation will showcase an edit of Mahesh Notandas and Vandals’ finest creations, offering guests a rare, private encounter with pieces that represent the pinnacle of the house’s artistry: exceptional precious stones set with the precision that has defined the Notandass name across generations.

Among the highlights of the evening are two exceptional jewellery artworks, a sculptural emerald and diamond glove featuring over 600 emeralds, and an intricately crafted scarf adorned with more than 300 natural emeralds and over 1,300 diamonds. Conceived as works of wearable art, both pieces reflect the house’s pursuit of scale, craftsmanship and extraordinary use of precious stones, blurring the line between jewellery and collectible art.

Hosted in partnership with Sotheby’s Switzerland, the evening reflects a shared philosophy across all three collaborators that true luxury is not loud. It is considered and felt before it is seen. Bringing together mindful living and fine craftsmanship in one setting, the evening positions House of Notandass at the intersection of substance and sophistication, in a location as rarefied as the jewels themselves.

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