Exclusive
Responsible business practices ‘no longer optional’, says WDC President Feriel Zerouki
The president of the World Diamond Council takes time out of her busy schedule to tell Rough&Polished readers about the critical work of the WDC. Zerouki, the first female present of the body, which includes all the important industry organizations among...
14 october 2024
James Campbell: Botswana Diamonds optimistic as it enters uncharted territory of using AI for mineral exploration
London-listed Botswana Diamonds has expressed optimism about the company’s use of artificial intelligence (AI) to scan the exploration database in Botswana to look for new mineralised deposits. Company managing director James Campbell told Rough...
07 october 2024
Artur Salyakayev: For me, happiness is freedom to make my ideas happen and create valuable products
Artur Salyakayev is an art entrepreneur, founder of the International Jewelry Academy (IJA) and the INCRUA jewelry company. He has initiated and developed successful projects in jewelry industry and services sector. He is also a leading expert...
30 september 2024
Paul Zimnisky: China key for sustained recovery in demand for natural diamonds, prices
The curtailing of upstream and midstream natural diamond production in the past months is starting to have an effect on prices, according to the New-York-based independent diamond and jewellery analyst and consultant, Paul Zimnisky. He told Rough & Polished’s...
23 september 2024
Vladimir Pilyushin: The jewelry market is not stand-alone and moves by the same laws as other markets
Vladimir Pilyushin is editor-in-chief of Russian Jeweler, a leading magazine about the jewelry industry in Russia. He told Rough&Polished about his view on the evolution of the jewelry industry in Russia and touched upon some of its problems.
16 september 2024
HRD Antwerp certifies the first commercial lab-grown “full diamond” ring
The piece is still visible today in the DIVA museum in Antwerp. That piece created so much attention worldwide, that he got an offer from the oldest European Jewellery house, Heursel, to make a second version, but this time as a high-end luxury piece of jewellery. It took two attempts and more than 1.600 hours of blood, sweat and tears, but they did it again.
What proved to be a challenge in 2017, remains a complex operation today. That it wasn’t smooth sailing, was made very clear when his first attempt at reproducing this result shattered at Christmas 2021, during the cleaning process, after 1.300 hours of work. After restarting the process, materials were shipped in from Germany and together with the Antwerp company Spitsdiam they started on a new design.
The pre-grinding took about 80 hours in-house at DD Group. For the facets, they came to Belgium, which took almost 300 hours. But the hardest part, the inside was by far the inside polishing which took more than 750 hours. A big difference in comparison to an average small diamond where you polish for about 8 hours.
After certification by HRD Antwerp, the ring will go to New York and through Hong Kong to its final destination in China, where a happy client will be able to wear the first full diamond lab-grown ring. DD Group is not planning to sell this design commercially.
The results of the ring are the following: Diamond Type: CVD lab-grown diamond - Carat Weight: 4.04 ct - Shape: Ring - Clarity: VVS2 - Color: D - Polish: EXC - Symmetry: EXC.
Alex Shishlo for Rough&Polished