LDB’s David Troostwyk: London still has major role to play in global diamond trade

London Diamond Bourse (LDB) President David Troostwyk has had a varied career in the diamond business. David sat down with Rough&Polished to discuss how his love of diamonds started, his career, the state of the diamond trade in the UK and globally...

12 may 2025

David Johnson: De Beers balancing lab-grown and natural diamonds rarity while pioneering ethical transparency

De Beers has been differentiating its lab-grown diamond brand, Lightbox, by positioning it as an affordable, fashion-focused product. Group spokesperson David Johnson told Rough & Polished that this is in contrast to how De Beers promotes natural diamonds...

28 april 2025

Who will bear the cost? Paul Zimnisky weighs in on U.S. jewellery tariff impact

The United States jewellery industry is facing a complex balancing act as new tariffs on diamonds force wholesalers and retailers to decide whether to absorb costs, negotiate with overseas suppliers (particularly India), or pass them on to consumers...

14 april 2025

Thataitsile Moremedi: South Africa's State Diamond Trader providing market access, exposure for nascent manufacturers

Although it is challenging for previously disadvantaged individuals to enter the diamond industry due to the financial barriers, South Africa's State Diamond Trader is providing nascent entrepreneurs with exposure, market access, and other support...

31 march 2025

Dr M'zée Fula Ngenge: KP has failed to adapt to contemporary challenges

The United Nations-backed Kimberley Process (KP), established in 2003 to prevent conflict diamonds from entering the mainstream rough diamond market, has failed to adapt to contemporary challenges, such as state-sponsored violence and sophisticated...

17 march 2025

India's KGK Group to receive De Beers' AMS Micro verification instrument this month

16 february 2024

KGK Group, an Indian diamond manufacturer headquartered in Hong Kong and a De Beers sightholder, has announced it will be the first company to adopt De Beers Group's AMS Micro diamond screening device.

Developed over two years, De Beers Group's AMS Micro can screen up to 2,500 diamonds per hour in the 0.6mm to 0.9mm size range, automatically separating natural diamonds from lab-grown diamonds and other materials with a 0% false positive rate and a referral rate of less than 3%.

AMS_Micro.jpg

A first-of-its-kind ‘robotic arm’ automated feed and dispense function, which requires no specialist expertise and can save users on average five days for every 100 carats screened.

Sarandos Gouvelis, Head of De Beers Group Ignite that developed the device, said: “AMS Micro represents an important breakthrough for the industry, as it greatly improves screening of the smallest sizes of diamonds. It comes to market following years of dedicated research and development by our leading scientists, and will be a game-changer for diamond businesses that deal in large volumes of melee diamonds.”

Patrik Schäfer, CEO of KGK’s Swiss office, said: "The KGK Group has been impressed by the innovation and capabilities offered by AMS Micro, which revolutionises the approach for screening diamonds in this size range, and we are excited about the long term benefits it will deliver to our business by providing enhanced assurance to our customers.”

Aruna Gaitonde, Editor in Chief of the Asian Bureau, Rough & Polished