2025 $20 Silver Williamson Diamond Brooch – FDOI PCGS PR70 DCAM, Steven Rosati Signed
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Microscopic Population: One of only 29 coins in existence bearing the prestigious signature of renowned U.S. Mint Medallic Artist Steven Rosati.
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Extremely Low Mintage: Struck from a strictly limited mintage of just 6,000 coins worldwide, ensuring long-term rarity and collector demand.
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U.S. Mint Artist Signature: Personally hand-signed by Steven Rosati, a celebrated artist from the United States Mint, lending this coin unique international prestige.
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Perfect Grade & Finish: Graded a flawless PR70 Deep Cameo (DCAM) by PCGS, showcasing a stunning contrast on its beautiful matte-finish surfaces.
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Elite FDOI Pedigree: Certified with the coveted First Day of Issue (FDOI) designation, marking it as one of the very first coins struck and released.
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Historic Royal Theme: Celebrates the legendary Williamson Diamond Brooch, one of the most personal and beloved jewels of Queen Elizabeth II.
A Numismatic Landmark
Elevate your collection with a coin that unites royal history, world-class artistry, and extreme rarity: the 2025 $20 Silver Williamson Diamond Brooch coin. While the coin itself is a stunning tribute, this specific example has been curated into the highest echelon of modern collectibles. It has achieved the highest possible grade of a perfect PR70 Deep Cameo and is certified with the elite First Day of Issue pedigree. The ultimate features, however, create a level of scarcity that is second to none: from a tiny mintage of 6,000 coins, this specimen is one of only 29 in the world to be hand-signed by its designer, U.S. Mint artist Steven Rosati. This is a monumental opportunity to own a top-population treasure that is historic, perfect, and verifiably rare.
Exquisite Royal Design
This coin masterfully captures the elegance and fire of one of the 20th century's most famous jewels. The unique matte finish provides a perfect, non-reflective canvas, allowing the Deep Cameo effect to make the frosted design elements appear to float above the surface.
The design intricately depicts the iconic flower-shaped brooch designed by Cartier, showcasing the legendary 23.6-carat Williamson Pink Diamond at its center, surrounded by over 200 smaller diamonds forming the petals, stalk, and leaves. The coin’s artistry faithfully translates the brilliance and exquisite craftsmanship of the original platinum-set masterpiece into pure silver.
Why Collect This Coin?
The case for this coin’s elite status is undeniable. It achieves a powerful trifecta of collector appeal: Royal History, Certified Perfection, and Extreme Rarity. Its historic theme connects it to the legacy of Queen Elizabeth II. Its perfect PR70 DCAM grade and FDOI pedigree signify flawless, early-strike quality. The crowning feature, the Steven Rosati signature, provides a direct link to the coin's creation and creates a microscopic population of just 29 coins.
Detailed Overview
This legal tender silver dollar coin commemorates the Williamson Diamond Brooch, a wedding gift to the future Queen Elizabeth II in 1947. The central pink diamond is considered one of the finest in existence. This coin issue pays tribute to that legacy. This specific example elevates the tribute to a new level, combining its limited mintage with a perfect grade and the signature of the U.S. artist who designed it, creating an international collectible of the highest caliber.
Artistic and Design Elements
The challenge of capturing the light and dimension of a world-famous diamond brooch on a metal surface is immense. The use of a specialized matte finish with deep cameo devices allows the design to convey a sense of depth and texture. The signature of Steven Rosati, an artist from the prestigious U.S. Mint, on a coin celebrating British royalty is a unique and fascinating element, highlighting the global nature of modern numismatic art.
Unique Collectible Features
This coin’s elite status is built on a clear and powerful "rarity funnel."
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It begins as a limited-mintage issue, with only 6,000 coins produced.
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From there, it's part of the smaller First Day of Issue population.
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It then achieves the perfect PR70 DCAM grade.
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The final and most exclusive feature is the Steven Rosati signature, which reduces the verified population for this specific treasure to a mere 29 examples worldwide.
Packaging and Presentation
The coin is encapsulated in a secure PCGS holder to protect its perfect condition. The holder’s label officially verifies the PR70 DCAM grade, the "First Day of Issue" pedigree, and prominently displays the authentic, hand-signed autograph of artist Steven Rosati.
