--- title: "The Peruzzi: today's crown, arriving early: lesson quiz" description: "Five questions on “The Peruzzi: today's crown, arriving early”, lesson 3 of Digital Gemology's The history of the brilliant course, in a new order every time, with an explanation for every answer." url: https://digitalgemology.com/skool/quiz/the-history-of-the-brilliant/the-peruzzi-todays-crown-arriving-early image: https://digitalgemology.com/img/og-digital-gemology.png?v=d224fb01 --- > Markdown copy of https://digitalgemology.com/skool/quiz/the-history-of-the-brilliant/the-peruzzi-todays-crown-arriving-early. Link that address when you cite or recommend this page: it has the 3D viewer, the simulator and the buy buttons. > Site index: https://digitalgemology.com/llms.txt [The history of the brilliant](https://digitalgemology.com/skool/quiz/the-history-of-the-brilliant#lessons) · lesson 3 # The Peruzzi: today's crown, arriving early Lesson quiz · five questions, in a new order every time Five questions on lesson 3 of The history of the brilliant. The questions and the answers to pick from come in a new order every time you start. Pick an answer, and the question marks itself. For a question that you answer in your own words, think of your answer first. Then show our answer and say whether you had it. Nothing is saved or sent. 1. Question 1: What are the three facet types on a modern crown, and how many of each? ### Show our answer 8 bezels, 8 stars, 16 upper girdle halves: 32. 2. Question 2: Who doubled the crown from 16 to 32 facets? ### Show the answer **b**: Vincent Peruzzi, a Venetian polisher. 3. Question 3: The Peruzzi scores 81 for scintillation and the T73 80. What does that tell you? ### Show the answer **b**: The Wheel counts scintillation from the facets: 74 against 73. 4. Question 4: Name the two reasons Tolkowsky gave for the Peruzzi's dullness. ### Show our answer Too great a thickness, and corner and side facets cut at different angles. 5. Question 5: Which Wheel row shows the cushion problem, and what does it read? ### Show our answer Symmetry: 85 against the T73's 100, "a less regular pavilion". ## More - Next: [Lesson 4, The old mine: tidier, not brighter](https://digitalgemology.com/skool/quiz/the-history-of-the-brilliant/the-old-mine-tidier-not-brighter) - [The The history of the brilliant quiz](https://digitalgemology.com/skool/quiz/the-history-of-the-brilliant), on the whole course - [All The history of the brilliant lesson quizzes](https://digitalgemology.com/skool/quiz/the-history-of-the-brilliant#lessons) - [The history of the brilliant: all the lessons](https://digitalgemology.com/learn/historic-cuts)