The brilliant cut diamond reaches its 100 year anniversary - Ramon Jewellers
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Marcel-Tolkowsky
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Diamond Design: Tolkowsky, Marcel.: 9781361816431: Amazon.com: Books
Gabi Tolkowsky in 1991 having completed the Centenary Diamond - The worlds largest D color flawless diamond
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Marcel Tolkowsky - Wikiwand
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Antwerp Diamond Industry Celebrates 100th Anniversary of Tolkowsky's 'Brilliant Cut' | The Jeweler Blog
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