Catherine, the Princess of Wales, has truly cemented her status as a global fashion icon — with her jewelry choices often stealing the spotlight. Among her favorites is Cartier, the French luxury brand synonymous with elegance and royal heritage.

On April 29, 2011, Catherine married Prince William at Westminster Abbey in a ceremony watched by millions worldwide. This moment marked her transformation from a commoner to the Duchess of Cambridge, and eventually, the Princess of Wales.

She wore a breathtaking lace gown by Sarah Burton for Alexander McQueen, featuring intricate floral embroidery and a long flowing train. The gown’s fitted bodice and full skirt were beautifully complemented by a delicate veil, creating a timeless bridal look.

The centerpiece of her jewelry was the iconic Cartier Halo tiara, graciously lent by Queen Elizabeth II. Commissioned in 1936 by King George V for the Queen Mother, this exquisite piece is crafted from 739 brilliant-cut diamonds and 149 baguette diamonds set in platinum.

Originally gifted to Queen Elizabeth II for her 18th birthday in 1944, the tiara had been worn by Princess Margaret and Princess Anne, reinforcing its remarkable royal legacy.

Fast forward to January 17, 2025 — Catherine visited the Royal Marsden Hospital in Chelsea, an engagement close to her heart, having received preventive chemotherapy there in 2024.

Her visit was both a public duty and a deeply personal moment. She met with staff and patients, highlighting her unwavering commitment to cancer care and raising awareness about the disease.

For the occasion, Catherine chose an outfit that balanced sophistication with approachability: a structured berry-toned coat by Blae Milano, known for its tailored silhouette and luxurious fabric. Underneath, she paired a turtleneck top with a matching skirt by Etelene Lee, creating a polished and cohesive look.

Her accessories added elegant touches, including a chic Asprey handbag — but the true highlight was her Cartier Trinity earrings in white gold, priced at $1,600.

Part of Cartier’s iconic Trinity collection, designed by Louis Cartier in 1924, these earrings feature three interlaced bands symbolizing love, fidelity, and friendship. Their minimalist yet luxurious design perfectly complemented Catherine’s outfit, while reflecting the heartfelt nature of her visit.

The subtle sparkle of the earrings added just the right refined touch — never overshadowing the focus on her warm interactions with patients and staff.

Catherine’s most frequently worn accessory? The Cartier Ballon Bleu stainless steel watch, appearing in over 110 royal engagements since 2014.

From her 2014 tour of New Zealand, appearances at Wimbledon, school visits, European travels, to family photo sessions — the watch accompanies Catherine through a wide range of public duties.

This 33mm stainless steel model, valued at $6,200, was a gift from Prince William for their third wedding anniversary in 2014. Its design features blue-steel sword-shaped hands, a silvered guilloché dial, black Roman numerals, and tiny sapphire crystals — all set in a stainless steel case with an interchangeable bracelet.

Since its founding in 1847, Cartier has been a cherished favorite of royalty, from Queen Elizabeth II to Princess Diana.

For Catherine, the Cartier collection isn’t just about luxury — it’s about storytelling. Each piece carries a narrative of love, duty, and personal triumph, perfectly reflecting her journey and role within the royal family.