# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/marcel-tolkowsky
# Generated: 2026-08-13T06:36:43.678Z

schema: https://schema.org/Person
url: "https://fame.am/person/marcel-tolkowsky"
name: "Marcel Tolkowsky"
slug: "marcel-tolkowsky"
description: "Marcel Tolkowsky, an engineer by education, was a Belgian member of a Jewish family of diamond cutters from Poland. He is generally acknowledged as the father of the modern round brilliant diamond cut. Many of his family have gone on to become noted diamond cutters, including his cousin Lazare Kaplan and his great-nephew Gabi Tolkowsky."
tagline: "Belgian mathematician and gemologist (1898–1991)"
gender: "male"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1898-12-25"
deathDate: "1991-02-10"
livingStatus: "DECEASED"
scores:
  popularity:           45.63
  momentum:             5.357142857142859
  historical:           6.358101333333334
  currentAttention:     0
  sourceConfidence:     39.99999999999999
  profileCompleteness:  45
  trendDirection:       "RISING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://mg.wikipedia.org/wiki/Marcel_Tolkowsky"
    title: "Marcel Tolkowsky"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Marcel_Tolkowsky"
    title: "Marcel Tolkowsky"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Marcel_Tolkowsky"
    title: "Marcel Tolkowsky"
    type:  "WIKIPEDIA"
  - url: "https://eo.wikipedia.org/wiki/Marcel_Tolkowsky"
    title: "Marcel Tolkowsky"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Marcel_Tolkowsky"
    title: "Marcel Tolkowsky"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Marcel_Tolkowsky"
    title: "Marcel Tolkowsky"
    type:  "WIKIPEDIA"
  - url: "https://ja.wikipedia.org/wiki/%E3%83%9E%E3%83%AB%E3%82%BB%E3%83%AB%E3%83%BB%E3%83%88%E3%83%AB%E3%82%B3%E3%83%95%E3%82%B9%E3%82%AD%E3%83%BC"
    title: "マルセル・トルコフスキー"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q997178"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump