Diamond market crash is Africa’s opportunity, not its crisis – M'zée Fula Ngenge

Global natural diamond supply is forecast to fall below 95 million carats this year, the lowest since 1987. For Dr. M'zée Fula Ngenge, chairperson of the African Diamond Council (ADC), this is not a death knell but a clarion call. In an exclusive...

12 october 2026

Tracr passes 5 million rough diamonds milestone as De Beers expands provenance push

De Beers Group's blockchain-enabled traceability platform Tracr reached a significant milestone in 2025, with more than 5 million rough diamonds individually scanned and registered, up from 2.8 million cumulative registrations reported in 2024. The...

28 september 2026

South African diamonds head to Hong Kong: SDT partners with BRINKS for JGW 2026

South Africa’s State Diamond Trader (SDT) has confirmed the country's participation in Jewellery & Gem World Hong Kong (JGW) 2026 through a partnership with BRINKS. SDT marketing and communication manager Tsholofelo Gopolang Tselapedi...

14 september 2026

David Benderly: PermaScribe seeks to put trust mark on diamond table, not just girdle

In this interview with Rough & Polished’s Mathew Nyaungwa, PhotoScribe Technologies president and chief executive David Benderly explains how PermaScribe differs technically from conventional laser inscription, its potential to strengthen security, and...

31 august 2026

The great reset: Paul Zimnisky on supply catharsis, De Beers' bargain and the case for natural diamonds

The natural diamond industry is in the throes of its most profound reset in a generation. Supply is plunging to its lowest level since 1987 and De Beers—once valued at over $9 billion—is reportedly being sold for as little as $1 billion.
Lab-grown...

10 august 2026

IGI still believes in standard LGD grading

13 june 2025

The International Gemmological Institute (IGI) will continue to grade lab-grown diamonds (LGD) using the same detailed framework applied to natural diamonds, according to the chief financial officer of the institute’s Indian branch Eashwar Iyer.

In light of a recent announcement by the Gemological Institute of America (GIA), which will start using descriptive terms to characterize the quality of LGDs, its competitor IGI would stick to the standard diamond grading scheme known as 4Cs (cut, color, clarity, and carat weight).

“I think it's of paramount importance that consumers get that sort of in depth information, rather than just making it extremely simplistic and generic. So from that context, IGI will continue to provide 4C's, irrespective of whether it's natural diamonds or lab grown diamonds," CNBC quotes Iyer as saying.

IGI has a strong position in the lab-grown diamond market, especially in India, where about 77% of global production takes place. Lab-grown diamonds currently account for 55% - 60% of IGI’s revenue.

Iyer remains optimistic about long-term growth, describing lab-grown diamonds as “a large volume play” with rising consumer interest.

“I don’t think there is going to be any pressure on certification demand,” he added.

GIA announced recently that it will revise its description system for laboratory-grown diamonds to confirm if the submitted item is a laboratory-grown diamond and whether it falls into one of two categories, ‘premium’ or ‘standard.’ The categories will be defined by a combination of metrics related to color, clarity and finish. According to GIA, the change reflects narrow color and clarity range of LGDs.

Theodor Lisovoy, Managing Editor, Rough&Polished