On the basis of decades of seeing the most exceptional gemstones of the world, we have built a fairly comprehensive system and method to assess the aspects of quality, rarity and salience in a structured and reproducible way. This resulted in new services, the Emerald Paternity Test and the Provenance Proof Blockchain, see for more information on these ground-breaking developments.Īnd now, we are again using technologies and data to address another challenge related to gemstones: giving end consumers orientation and direction in the complex world of coloured gemstones. Our understanding of technologies has also enabled us to tackle new challenges, such as bringing transparency in the supply chain of gemstones. Traditionally, gem labs master these science-based technologies, and have permanently pushed their use to novel applications. Gem labs have mainly focused on the aspects that are based on scientific, analytical methods, focussing on the material properties of the gemstones.
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But as beauty, and even more so quality, is also a powerful lever of value and price, the common and professional definition following certain logic and rules. In general, beauty is in the eye of the beholder, and no one can tell you what you personally consider beautiful. Beauty is an essential aspect for coloured gemstones and one central characteristics to define them. Traditionally, the interpretation and explanation of quality, beauty and rarity was with the trader or the jeweller. Why should a gem lab rate quality, beauty and rarity? This is the very basis for the trust we have earned over time in the trade and the public. It is this commitment to independence which ensures the provision of unbiased services, and the privacy and discretion of client’s data. We are very much aware of the challenges that come with the group structure, and since decades we are used to manage and maintain the required separation of systems, data and responsibilities. The Gübelin Gem Lab acts independently in its lab activities, and is not subject to any influence when it comes to testing gemstones, nor do we give any privileged insight into stones and orders we are getting.
Nevertheless, the gem lab is a proud member of the Gübelin family, and we are indeed cooperating in certain fields, but definitively not when it comes to the testing, or now the rating of gemstones.
We have very robust systems in place to make sure that our experts see nothing but the stone when doing their work. The client names and all other client-related information get removed before it goes into the testing process, to reduce the risk of bias. Since many decades, we have systems and processes that make sure that all stones, regardless who submitted them, undergo the same process of testing, and the same evaluation. This allows the gem lab to remain independent and offer the required privacy to its clients. At this point, Gübelin decided to spin off these activities into its own company, a separate legal entity, to cope with any conflict of interest. These early beginnings developed into true gemmological expertise and eventually the internal lab started offering gem testing services to auction houses and to the trade. So Gübelin opened in 1923 its gem lab, initially doing in-house gemstone testing for their own jewellery only. To learn more about gemstones and to maintain the trust of its clients, Gübelin set up a gemmological cabinet, one of the first gem labs. At that time, knowledge about gemstones was rather limited to academia and not easily accessible to the industry. When Gübelin started to create their own jewellery, they wanted to know exactly what they buy and what they sell to the clients. It started with selling and repairing watches, and later on, Gübelin enriched its assortment with jewellery. Since its establishment in 1854, the House of Gübelin had different activities.
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