DiamondBuzz
Lucapa Reports 36% Revenue Growth and Stronger Diamond Prices in Q1 2025
Lucapa Diamond Company delivered a strong financial performance in the first quarter of 2025, reporting a 36% year-on-year increase in revenue. The company earned $12.8 million from three run-of-mine diamond sales and one tender of goods from its Lulo mine in Angola during the quarter ending March 31.
The average diamond price per carat rose by 42% to $1,523, reflecting improved market conditions and a focus on higher-grade mining zones. Lucapa recovered 6,027 carats in Q1, up 6% from the same period in 2024. A 74% rise in the grade of ore mined helped offset the impact of a temporary production halt caused by a community-led blockade.
Managing Director Alex Kidman attributed the strong start to continued operations in the higher-grade lezirias (floodplain areas) during the wet season, noting that the performance represents a marked improvement over the same period last year.
Despite the positive trends in pricing and production, Lucapa flagged potential risks ahead due to recently introduced U.S. import tariffs. Although the tariffs came into effect after the quarter closed, the company said market uncertainty remains, with some buyers pausing purchases amid ongoing trade tensions.
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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