ComproDiamanti.it is the service for people looking to sell or value diamonds and jewellery. It is managed by La Diamanteria, established in Milan since 2009. The Silvera family spans five generations of Diamantaires. Its roots in diamond trading go back more than 300 years, as documented in historical research and articles about the family.
Our work today
Today the Silvera brothers buy diamonds directly from private sellers. A gemmologist reviews each request and the stone's characteristics: we neither auction items nor seek buyers on your behalf.
Our story in print
Francesca Trivellato's book Il commercio interculturale, a study published in Quaderni storici and a newspaper article document chapters of the family's trading history.
Our Milan boutique
Since 2009 we have welcomed clients by appointment at Via Vincenzo Monti 47, Milan. Here we can examine your item in person and make our direct offer. If accepted, payment is by traceable bank transfer.
Valuations and appraisals
We value over €200 million in diamonds each year. Since 2015 our Chamber of Commerce accredited gemmologists have also issued sworn appraisals for estates, asset divisions, legal disputes and insurance.
