DiamondBuzz
Finestar Diamonds Expands in South Africa with State-of-the-Art Manufacturing Hub
Finestar’s new Johannesburg facility boosts local diamond processing, job creation, and skills development while reinforcing the company’s global footprint and commitment to sustainable growth.
Finestar Diamonds and Jewellery has strengthened its presence in Southern Africa with the inauguration of a new diamond manufacturing facility at Johannesburg’s OR Tambo Special Economic Zone (SEZ) Jewellery Manufacturing Precinct.
The launch ceremony drew senior government officials, industry leaders, and dignitaries, including representatives from the Indian High Commission, De Beers, and the State Diamond Trader. This marks another milestone for Finestar, following previous facility openings in Botswana (2020) and Namibia (2022).

The new South African facility aligns with the country’s beneficiation agenda, promoting local diamond processing, job creation, and skill development. Since 2022, Finestar has created 46 jobs in South Africa—over half held by women—and plans to expand the workforce to 90. Training initiatives are already underway, with 22 employees learning multiple stages of diamond polishing and planning.
Government officials emphasized that local beneficiation supports economic diversification, industrialization, and inclusive growth. The SEZ offers advantages such as VAT exemptions and world-class infrastructure, which help streamline operations for manufacturers.
Finestar executives highlighted that the facility represents a deliberate growth strategy to leverage the SEZ’s ecosystem, scale operations, and extend investment. The company views this move as not only enhancing diamond production but also unlocking opportunities across the jewellery value chain and empowering local communities.

Nilesh Chhabria, COO of Finestar, said, “Our presence in the Jewellery Manufacturing Precinct is a strategic decision to combine infrastructure, policy support, and collaboration opportunities with our partners, enabling us to scale operations and expand investment. We are committed to building on South Africa’s diamond legacy while creating value and shaping a sustainable future for all stakeholders.”
The Johannesburg hub adds to Finestar’s global manufacturing footprint, which includes facilities in India, Botswana, and Namibia, reinforcing the company’s focus on traceability, sustainability, and community impact.
DiamondBuzz
CVD Synthetic Fashioned To Imitate A Rough Natural Diamond
The Near-Colorless Stone Is Believed To Be The First Time Creators Of A Synthetic Chemical Vapor Deposition (CVD) Diamond Have Shaped It To Resemble A Rough Diamond
The 6.87-carat near-colorless CVD diamond was shaped to resemble a natural rough octahedral crystal but showed distinct synthetic features under microscopic and spectroscopic analysis.GIA’s tests confirmed the stone’s synthetic origin, noting polishing marks, facet junction roughness, and luminescence patterns inconsistent with natural diamonds.
No evidence currently suggests widespread substitution of synthetics for rough natural diamonds, but existing detection tools could be adapted if such cases increase.
The near-colorless stone is believed to be the first time creators of a synthetic chemical vapor deposition (CVD) diamond have shaped it to resemble a rough diamond, according to an article in the spring issue of the institute’s Gems & Gemology quarterly journal.
Upon investigation with the use of raman spectroscopy, the results confirmed that the material was a diamond, with its near-octahedral shape similar to that of a natural rough crystal. Further analysis showed that it was not a true octahedron, as only one set of opposing faces was parallel. Microscopic observation under differential interference contrast revealed extremely flat faces marked mainly by parallel polishing lines, unlike the growth steps and trigons typically seen on natural octahedral faces. The facet junctions were extremely rough, possibly due to measures taken to improve the color, after which the main faces appear to have been repolished, the institute explained.
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