Approximate percentage of jewellery of certain purities of alloys stamped in the total volume of golden jewellery is as follows:

9 ct – 2%

12 ct – 2,5 %

13,992 ct – 0,5% (this purity is used in jewellery made on individual order, very seldom)

14 ct – about 90%

18 ct – 5%

This figures have been provided by the head of the Assay Office of Russia Alexander Perevedentcev at the Internet-conference held by Russian Jewellery Network Agency. The text of the conference will be available soon at www.jewellernet.com.