“Up till now there has been a strict policy in Israel against LGDs; have been forbidden on IDE trading floor for years.”: Aviel Elia, Managing Director- IDI

Aviel Elia, an attorney by profession, has served as Legal Adviser and Company Secretary of IDI since 2013. As a key member of the Israel Diamond Institute (IDI) management team, he has been involved in developing company strategy and negotiating...


Unifying role is the main objective of the National Gemological Association

Yuri Shelementiev runs the Gemological Centre (GC) at the Moscow State University and is a president of the National Gemological Association (NGA) uniting the gemologists of Russia. The head of the MSU’ GC and the NGA answered the R&P’s...

15 july 2019

“Our goal is to bring clarity to the offering of Lab Grown Diamonds”, asserts Chris Casey, President, Lab Grown Diamond Council

Chris Casey is a 15-year veteran of the diamond and jewelry industry.  Chris also has extensive experience in market research as Founding Managing Director of the NPD Diamond and Diamond Jewelry Service where his responsibility included the...

08 july 2019

Dr. Michael S. Krzemnicki: Our dedication to scientific research is an important foundation to our expertise

Dr. Michael S. Krzemnicki, PhD, Director of the Swiss Gemmological Institute SSEF, in an interview with R&P told about the activities and plans of one of the world's leading Gemological laboratories specializing in scientific research of diamonds...

01 july 2019

“Lab-Grown Diamonds is probably the biggest scam this industry has ever seen,”: Leibish Polnauer, Founder-President, Leibish & Co.

An interesting story from the Leibish & Co takes you way back to the year 1979 when young Leibish Polnauer, then a diamond polisher, was travelling to London, having just found out that the factory at which he worked had been shut down. He found an advertisement...

24 june 2019

Imperial provenance emerald will be auctioned off at Christie’s, Geneva

22 april 2019

Christie’s said that at its “Magnificent Jewelry’’ auction, which will be held on May 15, 2019, it will sell a historically significant emerald, the provenance of which can be traced back to Catherine the Great.
The pear-shaped stone currently weighs 75.61 carats. It was owned by the Russian imperial family for over 100 years. 


Image credit: Christie's

In 1874, the stone was given to Maria Pavlovna as a wedding gift when she married the son of the Russian Emperor, Vladimir. When in Maria's possession, the stone weighted 107.67 carats.
In 1927, after the death of Maria, her son Prince Boris Vladimirovich sold the jewel to Cartier. The owners of the jewelry house inserted the emerald into a diamond necklace, of which it was a part until 1947.
Pierre Cartier then agreed to create an emerald pendant for a necklace bought from the Payne Whitney family by Rafael Esmerian.
In 1954 it was decided to give a new cut to the stone in order to improve its quality.
As a result, the emerald gained its pear shape and new weigh of 75.63 ct, it was studded in the same Cartier necklace, extended by one link. Soon, the jewellery was purchased by John D. Rockefeller Jr.
The next time the necklace appeared in 1971 at a Swiss auction where Rafael Esmeryan purchased it for CHF 4,300,000.
Now, the necklace makes a part of a private collection. 

Victoria Quiri, Correspondent of the European Bureau, Rough&Polished, Strasbourg