– Our appraisal criteria –
Our appraisals are based purely on objective criteria and the strictest gemmological standards. Below you will find a summary of our key appraisal criteria:
We appraise only those pieces that we can examine in person. We do not carry out appraisals based solely on a description or photos.
Your piece is securely stored and insured as long as it is in our care.
Our evaluation dossier contains the applicable precious metal and foreign exchange rates. It is available in German, French, Italian or English.
We provide as precise an estimation as possible of the weight, purity, colour and mass of mounted gems. Estimations are specified as such.
We use modern Sarin technology for measuring loose Diamonds.
Our evaluations include preliminary gemmological assessments. If you wish to obtain a comprehensive scientific report, we would be pleased to commission one from a reputable gemmological laboratory.
Our conclusions are based on information gleaned from retailers, industry fairs and auctions. We also observe current supply and demand trends. Unless stated otherwise, our appraisal is based on the current value on the European market.