International News
Rio Tinto Unveils Rare 158ct Yellow Diamond from Diavik Mine in Canada
One of the largest gem-quality yellow diamonds ever discovered in Canada, the 158.20-carat gem is a remarkable find as Diavik Mine nears closure.
Rio Tinto has uncovered a rare and exceptional 158.20-carat yellow diamond at its Diavik Mine in Canada, marking one of the largest gem-quality yellow diamonds ever found in the country. This stunning discovery is also among only five yellow diamonds weighing over 100 carats to be unearthed by the company at Diavik throughout its 22-year history. Notably, Diavik is primarily known for producing white diamonds, with less than 1% of its output being yellow stones.
The Diavik Mine, which is set to close next year, is also responsible for several significant yellow diamond finds, including Canada’s largest yellow diamond, a 552.74-carat gem discovered in 2018, and the 187.7-carat Diavik Foxfire found in 2015.
With the closure of the Argyle mine in Australia in 2020, Diavik is now Rio Tinto’s sole diamond asset. Patrick Coppens, General Manager of Sales and Marketing for Rio Tinto’s diamond business, expressed excitement over the unique beauty and purity of the Diavik diamonds, eagerly anticipating the future of this extraordinary find.
International News
Platinum Jewellery Gains Share Amid Record Gold Prices, PGI Reports Q4 2025 Market Shifts
Momentum key Regions In The Q4 Validates Platinum’s Growing Relevance In Today’s Jewellery Market.
The Platinum Guild International (PGI) today released its Q4 2025 Platinum Jewellery Business Review (PJBR), highlighting varying regional performance trends, with platinum’s value proposition remaining supportive in key markets against a backdrop of record-high gold prices and evolving trade dynamics.


Tim Schlick, CEO of Platinum Guild International, Said:

“The momentum we observed across key regions in the fourth quarter validates platinum’s growing relevance in today’s jewellery market. With gold prices remaining elevated, platinum continues to offer a premium yet accessible alternative that appeals to value-conscious consumers and luxury buyers alike. Looking ahead, PGI remains committed to partnering with the trade to capitalise on this favourable price dynamic—driving innovation, supporting strategic marketing initiatives, and reinforcing platinum’s enduring value in bridal, fashion, and other key segments.”
Regional Market Highlights
China
China’s platinum fabrication softened further in Q4 after a strong first half, but still recorded a 56% annual increase for 2025. The slowdown was driven by a combination of slower inventory turnover and elevated metal prices, which diverted retailer capital towards gold and dampened restocking sentiment. Wholesalers liquidated generic stock to realise capital gains, while retailers prioritised operational resilience. Despite significant challenges, PGI’s retail partners outperformed the broader market, achieving a 7% year-over-year increase in platinum jewellery sales volume during the last quarter of 2025.
India and the Middle East
In India, platinum jewellery continued to outperform the broader market, with strategic partners’ retail sales growing 10% year-over-year. Overall jewellery demand saw a marginal uptick, supported by the festive season and a shift toward lightweight purchases, though volume growth was constrained by a high comparison base and sharp gold price increases. Promotional efforts for brands such as Men of Platinum reinforced platinum’s value amidst price volatility.
PGI continued expanding its UAE presence by onboarding new retailers, bringing the total to 174 stores at the end of 2025.
Japan
Japan’s jewellery market saw value recover in Q4 due to sustained price increases, while platinum jewellery unit sales recorded a notable 1.5% year-on-year recovery. This upturn was partly supported by substitution away from gold amid extreme price volatility. For the full year, platinum’s share of unit sales rose, whilst white gold’s share declined.
United States
In the U.S., platinum jewellery sales reflected a clear divergence between declining unit volumes and strong value growth, with dollar sales significantly outpacing volumes. Record-high gold prices cooled volume demand across the broader industry, but platinum’s price—remaining less than half that of gold—bolstered its appeal. Despite tariff-related headwinds, the shift from white gold to platinum accelerated, with strategic partners reporting double-digit revenue growth.
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