SA diamond producers welcome ruling on Mining Charter

The South African Diamond Producers Organisation (SADPO) has supported a High Court ruling that the country’s Mining Charter is an instrument of policy, not binding legislation.


Indian diamond exporter under Income Tax radar

The Income Tax department carried out search operations on premises connected to a leading diamond manufacturer and exporter from Gujarat and seized a large volume of unaccounted data. The raids, which began on September 22 based on intelligence input...


New RJC standard for lab-grown materials

Responsible Jewellery Council, the world’s leading standard-setting organisation for the global jewellery and watch industry with 1,500 member companies in 71 countries, announced that it will develop a standard for laboratory-grown materials to establish...


Mountain Province Diamonds announced appointment of director

Mountain Province Diamonds Inc. announced the appointment of Mr. Dan Johnson, P.E. to its Board of Directors. An accomplished leader in the mining industry, Johnson's expertise ranges from mine design, construction, and operations, to finance and...


Minjar Gold Pty Ltd seeks proposal to acquire 100% ownership of Golden Dragon Gold Project

Australian miner Minjar Gold Pty Ltd announced that it is seeking proposals to acquire 100% ownership of the tenements of the Golden Dragon Gold Project and / or the neighboring Fields Find Project together the Assets. The Assets are located 350km...


Diamond Evolution: Why the 4Cs is no longer an adequate pricing system

13 september 2019
( - Using the 4Cs (colour, clarity, cut, and carat weight) to explain diamond pricing was developed by the Gemological Institute of America (GIA) in the 1950s. At that time, cloudy diamonds were considered ‘industrial-grade’ stones and were not set in jewellery. As such, transparency was not a concern, nor was treatment status, as almost all diamonds were untreated. Likewise, there were no separate price lists for rounds or other shapes—therefore, it didn’t matter that ‘cut’ was used interchangeably to refer to both the shape of the stone and the quality of the cut. Further, the only lab-grown diamonds that were available were tiny stones, which were used as industrial abrasives. Times have changed. These days, cloudy and hazy diamonds are often used in jewellery, but their clarity grade on lab reports does not necessarily reflect their lower transparency and value. It’s also become much more common for diamonds to be treated to improve their colour and apparent clarity grades—and the price difference between treated and untreated diamonds can be significant. Additionally, cutting style and shape are distinct price factors from cut quality and many gem labs now issue diamond reports with cut grades. High-quality lab-grown diamonds have become widely available and sell for much less than mined, natural diamonds. When all of these listed factors are considered, it becomes very clear the 4Cs is no longer an adequate pricing system.