Canada: Williamson Diamond Brooch $200 Gold 2025 Proof

The Canada: Williamson Diamond Brooch $200 Gold 2025 Proof coin is a unique piece inspired by one of Queen Elizabeth II's most iconic brooches. The flower-shaped brooch, known as the Williamson Diamond Brooch, has a special Canadian connection – its extraordinary pink diamond, one of the largest and purest of its kind, was a wedding gift from Canadian geologist John Thoburn Williamson.

This remarkable gemstone was cut and set in a platinum and diamond brooch completed in 1953, the year of Queen Elizabeth II’s coronation. Throughout her seven-decade reign, the Queen frequently wore this brooch, appearing in family portraits, state ceremonies, and other significant events such as the Silver Jubilee service in 1977 and the weddings of her children. Now, its intricate shape has been recreated on this exceptional coin, the second release in the prestigious Crown Jewels series issued by The Royal Canadian Mint.

The coin is made of pure Au.9999 gold, weighing 60.08 grams with a diameter of 38 mm, in proof standard. It features a 0.50-carat pink tourmaline of AAA quality, symbolizing the famous pink diamond from the original brooch. Additionally, its platinum-plated silver setting holds 28 diamonds with a total weight of 0.41 carats. The coin is backed by the Government of Canada for its authenticity, metal purity, and legal status as official tender. It is minted in a limited edition of only 225 pieces and comes in an exclusive wooden collector’s box.

The obverse features a portrait of King Charles III, designed by Steven Rosati, along with the issue date and face value.

The reverse showcases an intricately engraved five-petaled flower adorned with a pink tourmaline and 28 diamonds set in a platinum-plated silver frame, adding brilliance to the entire design.