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20 Dollars - Charles III Williamson Diamond Brooch
| Issuer | Royal Canadian Mint |
|---|---|
| Year | 2025 |
| Type | Log in to see details |
| Value | 20 Dollars |
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| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Latin |
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| Mint | Royal Canadian Mint |
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| Additional information |
The Williamson Diamond — a 23.6-carat pink diamond unearthed in 1947 at John Williamson's Mwadui mine in Tanganyika — was presented to Princess Elizabeth as a wedding gift that year and later cut and set into a brooch by Cartier. It remains one of the finest pink diamonds ever recorded, notable for its exceptional saturation and near-flawless clarity. The original Cartier setting places a single brilliant-cut stone at the center of a stylized flower mount.
This coin reproduces that brooch in miniature relief, with a rhodium-plated setting and colored glass approximating the original gem's hue.