DiamondBuzz
Christie’s to Auction ‘Mellon Blue’ Diamond for Up to $30M in Geneva
The 9.51-carat fancy vivid blue diamond, once owned by Bunny Mellon, will headline the Magnificent Jewels sale this November.
Christie’s will offer a rare and historic blue diamond in its upcoming Magnificent Jewels sale on November 11, with the exceptional stone estimated to fetch up to $30 million.
Known as the Mellon Blue, the jewel features a 9.51-carat, pear-shaped, fancy vivid blue diamond, graded internally flawless — one of the highest accolades for clarity and color in the diamond world.
The diamond was once owned by Rachel Lambert “Bunny” Mellon, the American philanthropist, art collector, and noted horticulturalist whose garden designs can be seen at both the White House and the Palace of Versailles. Mellon, heiress to the Gillette fortune, was known for her refined taste and cultural influence.
Previously set in a pendant, the diamond was sold at Sotheby’s in 2014 for $32.6 million, where it set a then-world record for a blue diamond. It has since been recut to enhance its clarity, and is now being presented in a newly designed ring setting for this sale.

“This stunning fancy vivid blue diamond, which once belonged to America’s ‘Garden Queen,’ is among the finest colored diamonds ever to come to market,” said Rahul Kadakia, International Head of Jewelry at Christie’s. “After a very strong first half for Christie’s jewelry department, we look forward to the second half of 2025 with great confidence.”
Ahead of the auction, Christie’s will preview the Mellon Blue in Saudi Arabia, Shanghai, Hong Kong, Bangkok, and New York, allowing collectors and connoisseurs around the world a rare glimpse at one of the most exquisite colored diamonds to appear at auction in recent years.
BrandBuzz
De Beers Group Rewrites the Diamond Story with ‘Intention Pendants’ for the Woman Who Chooses Herself
Where natural diamonds become expressions of intent for women shaping their own path
De Beers Group taps into the modern ritual of intention-setting with the launch of ‘The Intention Pendant’ collection, where natural diamonds become intimate expressions of purpose and personal power. Designed for the woman who marks her milestones quietly yet deliberately, the high-glamour collection reflects a new language of self-gifting rooted in meaning, emotion, and self-belief. The launch speaks to a wider cultural shift, one where success is defined internally and luxury becomes a deeply personal signature.
For Gen Z and millennials, practices like manifestation, vision boarding, and ‘scripting dreams’ are no longer trends; they are core lifestyle rituals. Intention-setting has become a daily act of self-empowerment. De Beers Group captures this sentiment through a personal campaign narrative that features a young woman crafting a vision board and reconnecting with her inner clarity, with the pendant serving as her constant companion through quiet moments and self-discovery.

“Women today are choosing to celebrate themselves through everyday intentions. The Intention Pendants draw from the extraordinary legacy of natural diamonds while honouring this cultural shift,” said Toranj Mehta, Vice President of Marketing, De Beers Group India. “Rooted in the extraordinary legacy of natural diamonds, this collection reflects a shift toward jewellery as a personal marker of growth. Each piece serves as a quiet reminder a woman wears for herself, honouring her inner resolve and the promises she makes to her future.”
The launch is supported by a comprehensive 360° campaign designed to inspire and engage across print, television, radio, cinema, outdoor, digital, and social media outreach. Leading Bollywood and sports icons including Tamannaah Bhatia, Athiya Shetty and Sania Mirza have created and shared their personal vision boards while wearing the pendants, amplifying authenticity and aspiration.
Each Intention Pendant features a natural diamond, formed over billions of years and shaped patiently by nature, carrying a sense of timeless continuity into the present. Refined through the forces of time, it stands as a lasting symbol of resilience and brilliance. Inspired by celestial forms and personal energy, the design brings this journey from nature’s heart to hers into a modern, wearable expression. Worn close to the heart, the pendant becomes a personal touchstone, subtly manifesting her best life while reflecting her intentions, inner strength, and the journey she continues to shape.
The Intention Pendant collection builds on De Beers’ global focus on self-gifting as an evolving expression of self-love. Across markets, natural diamonds are increasingly chosen to mark independent decisions, personal milestones, and moments of inner transformation, signalling a move beyond traditional gifting toward jewellery that reflects individuality and purpose.
Launching ahead of the year-end period of reflection, the collection aligns naturally with a season devoted to renewal, clarity, and intention. The Intention Pendant emerges not as a statement piece, but as a personal symbol, one that accompanies a woman quietly as she defines success on her own terms.
‘The Intention Pendant Collection’, serves as a reminder of one’s potential through the timeless beauty of a natural diamond and personal expression. De Beers invites you to connect with cosmic energy, flowing from nature’s core to your own.
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