---
title: "Hearts and arrows: precision you can see: lesson quiz"
description: "Five questions on “Hearts and arrows: precision you can see”, lesson 7 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/hearts-and-arrows-precision-you-can-see
image: https://digitalgemology.com/img/og-digital-gemology.png?v=d224fb01
---

> Markdown copy of https://digitalgemology.com/skool/quiz/the-history-of-the-brilliant/hearts-and-arrows-precision-you-can-see. 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 7

# Hearts and arrows: precision you can see

Lesson quiz · five questions, in a new order every time

Five questions on lesson 7 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: Which came first: the viewer or the hearts and arrows cut?
  ### Show our answer
  The viewer came first: the FireScope, from research in 1977–1984. Then cutters cut stones to perform in it (EightStar, 1985).
2. Question 2: Who gave the cut its name, and what did his US patent protect?
  ### Show the answer
  **b**: The patent covers the viewer and a way to photograph through it, not the cut or the name.
3. Question 3: Why can a stone with a good symmetry grade still fail to show hearts and arrows?
  ### Show our answer
  The pattern needs opposite facets to match in angle and direction in 3D. An ordinary symmetry grade checks the facets as they sit on the surface.
4. Question 4: In the Scope, the T73 shows the pattern in diamond and loses it in moissanite, with the symmetry readout at 100% in both. What does that tell you?
  ### Show the answer
  **b**: A crisp pattern needs perfect symmetry and angles that suit the material.
5. Question 5: The T73 scores almost the same brilliance and fire as the T57. What did hearts and arrows change, then?
  ### Show our answer
  Not the angles: the precision of the cut, and a way for buyers to see it.

## More

- Next: [Lesson 8, DG-Miliano: past the 1919 ceiling](https://digitalgemology.com/skool/quiz/the-history-of-the-brilliant/dg-miliano-past-the-1919-ceiling)
- [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)