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
Tiffany & Co. Unveils The Final Installment Blue Book 2026: Hidden Garden – Autumn Phase
Autumn Launch Monetizes Legacy IP By Synthesizing Iconic Jean Schlumberger Design Frameworks With Modernized Material Sourcing
Tiffany & Co. today announced the strategic rollout of the final installment of its core high-jewelry strategy for FY2026: Blue Book 2026: Hidden Garden – Autumn Phase.
Following Q1 and Q2 activations in New York and Paris, this release optimizes the brand’s creative portfolio, driving multi-seasonal consumer engagement through elevated, nature-focused design paradigms.
Developed under the strategic direction of Nathalie Verdeille alongside the Paris Atelier execution team, the Autumn launch monetizes legacy IP by synthesizing iconic Jean Schlumberger design frameworks with modernized material sourcing.
Key Product Pillars & Performance Highlights:
The Nest Vertical:
Features scalable structural geometry utilizing integrated platinum and 18k yellow gold matrixing to surround high-margin Fancy Yellow cushion-cut diamonds.
Hanging Garden Portfolio:


Optimizes mixed-gem synergies, combining custom-cut Mozambique cabochon rubies, lavender chalcedony, and proprietary paillonné enamel to deliver a differentiated color value proposition.
Hanging Fruit Series: Iterates on the archival Schlumberger “Two Fruit” clip framework, utilizing orange spessartines and turquoise cabochons to scale market reach within modern high-jewelry segments.
Dahlia & Pineapple Asset Lines:
Integrates archive-inspired ribbon forms and geometric skin-patterning featuring high-grade Sri Lankan sapphires, deep blue paillonné enamel, and vivid tsavorites.

Vine & Paradise Bird Integrations: Capstones the collection with mixed-cut diamond arrays, hand-engraved gold detailing, and high-carat centerpiece gemstones, including a 31-carat cabochon chalcedony and a 37-carat rose quartz.
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