Following the remarkable success of the 300-carat Golden Canary, Sotheby’s is set to unveil another extraordinary fancy coloured diamond: The Glowing Rose. This 10.08-carat Fancy Vivid Pink diamond — a true marvel of nature — is poised to take centre stage at Sotheby’s High Jewellery Sale in Geneva on 12 November 2025. Estimated to fetch around $20 million, this rare diamond is more than a gemstone: it is a geological miracle.
Pink diamonds are the unicorns of the gem world. Out of all diamonds examined by the Gemological Institute of America (GIA), fewer than 0.15% display a pink hue — and only a microscopic fraction of those achieve the coveted Fancy Vivid grade. The Glowing Rose belongs to this most exclusive elite.
Named for its luminous and intensely pure hue — a rare occurrence, as most pink diamonds display secondary modifying tones — the Glowing Rose was cut from a 21-carat rough stone mined in Angola in 2023, responsibly sourced under the Kimberley Process Certification Scheme, ensuring ethical provenance and transparency.
Its journey from rough crystal to finished masterpiece was guided by a single goal: to preserve its astonishing natural colour. The result is a cushion-cut diamond whose rounded corners and deep facets magnify its inner brilliance — an effect gemologists call «the marriage of form and flame». Light refracts within the stone to create a vivid, romantic blush, as if the diamond itself remembers the dawn from which it was born.
«The Glowing Rose, with its cushion shape, has everything to appeal to the most discerning of collectors» says Jessica Wyndham, Head of High Jewellery at Sotheby’s Geneva. «It possesses a wonderfully saturated colour, very high clarity, and, at just over ten carats, a fabulously rare size for a pink diamond of this quality».
To frame such a rarity, British heritage jeweller Boodles was entrusted with designing the presentation mount.
The resulting ring features a geometric star motif set with Argyle pink diamonds and a platinum band accented by baguette and brilliant-cut white diamonds that flow into a subtle chevron of pinks. The diamond itself is held aloft in a cradle of Single-Mine-Origin pink gold, emphasizing the gem’s extraordinary hue.
«It’s a high watermark in our long relationship with Sotheby’s» says Jody Wainwright, Managing Director of Boodles. «This is one of the most spectacular vivid pink diamonds we’ve ever had the privilege to set».
Before its grand appearance, The Glowing Rose was showcased in Singapore and Taipei in October, where collectors and enthusiasts were able to admire its unparalleled beauty. The diamond will next be displayed in Geneva from 7 to 11 November, ahead of the sale at the Mandarin Oriental.
The appearance of The Glowing Rose comes at a pivotal time for the diamond market. With the closure of the famed Argyle Mine, once the world’s primary source of pink diamonds, supply has entered an age of scarcity. Prices for top-quality pinks have soared, and each new discovery feels like a final bloom from a vanishing garden.
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Sotheby’s describes it as «a wonder of nature», and it is not hyperbole. In the past decade, only two other vivid pink cushion-cut diamonds over 10 carats have ever graced the auction block. The Glowing Rose is the third — a rarity among legends.
With its purity, provenance, and peerless colour, this gem joins the pantheon of pink diamonds that have defined Sotheby’s legacy — from the Williamson Pink Star diamond (11.15 carats), which sold in 2022 for $57.7 million, to the Eternal Pink (10.57 carats) in 2023 for $34.8 million, and the still-unrivalled CTF Pink Star (59.60 carats), which set the world record in 2017 at $71.2 million. The Glowing Rose is poised to write the next chapter of this legendary lineage.
