Didier Giard: Stiff competition among the diamantaires is one of the factors of the price war

On September 9, 2019, the French Association of Gemmology (l’Association Française de Gemmologie, AFG) held its regular Paris Gemmological Rendez-Vous. Its organizer, Didier Giar, the head of the AFG kindly agreed to answer questions from Rough&Polished...

16 september 2019

“The industry is under some pressure, and as we all know, diamonds are formed under great pressure!”, says Dr Martin Leake

A veteran in the field of precious stones, Dr Martin Leake a doctorate geologist had worked for 22 years with BHP Billiton; and also set up a world-class marketing unit for Grib Diamonds in Antwerp. Later, as an Independent Consultant, Dr Martin Leake...

09 september 2019

Recovery of diamond industry within a year if end-consumer demand holds – Zimnisky

An independent diamond industry analyst and consultant said the natural diamond industry will be in a better position within a year time if end-consumer demand holds. Paul Zimnisky, CFA told Rough & Polished’s Mathew Nyaungwa in an exclusive interview...

02 september 2019

Working according to one’s weaknesses and strengths

Canon Jhaveri grew up watching his diamond-dealer father and uncle working with diamonds. The sparkles of the diamonds fascinated the young boy, who became more intrigued every time he visited his father’s office. After graduating in 2002, Canon Jhaveri...

26 august 2019

The diamond business is yet bright and has a good future in the coming days

Hitesh Patel, Managing Director of Dharmanandan Diamonds Pvt. Ltd., joined the family business in 1997 to help his father Laljibhai Patel, the founder of Dharmanandan Diamonds Pvt. Ltd. Egged on by its success, Hitesh set up the overseas presence of...

19 august 2019

GSI conducted a full review of Marks Jewelers’ inventory for undisclosed lab grown diamonds

23 august 2019

Gemological Science International (GSI), one of the largest gemological organizations in the world, conducted a full review of Marks Jewelers’ inventory for undisclosed lab grown diamonds. 
GSI sent a mobile team to Marks Jewelers’ 25,000 square foot state of the art store in Montgomeryville, PA to screen and test all diamond jewelry in their showcase and inventory. “The GSI team was extremely professional and knowledgeable and we are pleased that they screened our entire inventory fast and efficiently,” said Jim Brusilovsky, President of Marks Jewelers. “The GSI team came in with their equipment, set up their testing area and went to work with minimal disruption to regular business. With the assurance of GSI, we know that all of our existing and incoming diamond inventory does not have any undisclosed lab grown diamonds,” said Dareen Brusilovsky,” V.P. of Merchandise.  

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Image credit: GSI


“Marks Jewelers is a true leader in the industry. Jim has a strong sense of responsibility to his customers and has therefore pioneered the way for independent jewelers to screen and test their diamond jewelry inventories,” said Debbie Azar, President and Co-Founder of GSI. “We commend Jim and the Mark Jewelers team for best practices and encourage all retailers to put a process in place for the detection of undisclosed lab grown diamonds. I want to stress that the issue of undisclosed diamonds is still a problem within our industry. “ 
GSI is a world leader in gemological services, with 13 gemological laboratories across four continents, combining state-of-the-art technology with the highest ethical standards. GSI recently opened a new 4,200-square-foot Laboratory in New York dedicated to the screening and detection of undisclosed diamonds.  

Alex Shishlo, Editor of the Rough&Polished European Bureau