
Awaiting Stock
Crown Jewels Series: Williamson Diamond Brooch – Pure Gold Coin with Pink Tourmaline and Diamonds
2025
Mintage 225
Awaiting Stock
Crown Jewels Series: Williamson Diamond Brooch – Pure Gold Coin with Pink Tourmaline and Diamonds
2025
Mintage 225
$7,463.36 USD
Pay up to 6 monthlyinstallments of $1,243.89 USD.
Masters Club:
105,000
Status: CAN & US shipping only
Availability:
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Shipping: Expected to be shipped on Apr 28
About
Fit for a queen: A pink tourmaline and diamonds add majesty to this brooch tribute.
One of Queen Elizabeth II’s most iconic brooches, the flower-shaped Williamson Diamond Brooch has a Canadian connection: its gorgeous pink diamond, one of the largest and finest of its kind, was a wedding gift from Canadian geologist John Thoburn Williamson. The extraordinary jewel was cut and set into a platinum-and-diamond brooch completed in 1953, the year of Queen Elizabeth II’s coronation, and was frequently worn throughout her seven-decade reign, appearing in family portraits, at State occasions and momentous celebrations — including the Silver Jubilee Service in 1977, and the weddings of two of her children.
The intricate shape of the Williamson Diamond Brooch is on full display for all to admire on this 99.99% pure gold coin, the second in our Crown Jewels series. On your coin’s reverse, the brooch’s five-petalled flower is adorned with a pink tourmaline gemstone and 28 round-cut diamonds, all set in a platinum plated mount, which extends its luxurious shine to the floral elements on the reverse and the effigy on the obverse.
Special features
- Second Crown Jewels coin. Launched in 2024, the Crown Jewels series takes a closer look at some of the Royal Family’s most magnificent heirloom brooches.
- A royal brooch with a Canadian connection. This 99.99% pure gold coin features an interpretation of the Williamson Diamond Brooch. The jewel was designed around a stunning pink diamond that was presented to then-Princess Elizabeth as a wedding gift from Canadian geologist John T. Williamson.
- Pretty pink tourmaline. Graded AAA quality, a 0.50-carat round-cut Fancy Pink tourmaline gemstone stands in for the brooch’s central stone on your coin’s reverse, where it is set in a sterling silver-and-platinum-plated mount.
- Incomparable diamond sparkle. Also set in the platinum-plated mount are 28 round-cut diamonds (0.41 carat total weight) that bring some of the original brooch’s sparkle to this collectible tribute.
- Beauty and rarity. Previous crown- and tiara-themed coins sold out quickly, and only 225 coins are available to collectors worldwide.
- Special certificate. In addition to the serialized certificate from the Royal Canadian Mint (the Royal Canadian Mint certifies all of its collector coins), your coin comes with an additional certificate of authenticity for the precious stones.
Packaging
Your coin is encapsulated and elegantly presented in a Royal Canadian Mint-branded wooden case with a black beauty box.

Features

Incomparable diamond sparkle
Also set in the platinum-plated mount are 28 round-cut diamonds (0.41 carat total weight) that bring some of the original brooch’s sparkle to this collectible tribute.

Platinum plating
The royal brooch’s shape also inspired the floral accents engraved on both sides of the main flower, and all of these elements are plated with platinum.

Premium packaging
Your encapsulated coin comes packaged in a premium wooden case with a black beauty box.
Specifications
Product Number
250055
Mintage
225
Composition
99.99% pure gold with a platinum-plated silver mount with 28 round-cut diamonds and a pink tourmaline
Weight
60.08 g
Diameter
38 mm
Edge
Serrated
Face Value
$200
Finish
Proof
Packaging
Wood case
Artist
Mint Engravers (reverse), Steven Rosati (obverse)
Design & Artist

Reverse
Mint Engravers

Obverse
Steven Rosati
The coin’s reverse features an interpretation of the Williamson Diamond Brooch frequently worn by Queen Elizabeth II throughout her seven-decade reign. Re-creating the look of the original brooch, an engraved five-petalled jonquil flower is adorned with a silver-and-platinum-plated mount consisting of a 0.50-carat round-cut pink tourmaline gemstone and 28 round-cut diamonds (0.41 carat total weight). The stylized floral accents engraved on both sides of the sparkling centrepiece are also inspired by the royal brooch and are plated with platinum. The obverse features the effigy of His Majesty King Charles III by Canadian artist Steven Rosati.
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