---
title: "Beyond Z: fancy color and fluorescence: lesson quiz"
description: "Five questions on “Beyond Z: fancy color and fluorescence”, lesson 4 of Digital Gemology's The four Cs course, in a new order every time, with an explanation for every answer."
url: https://digitalgemology.com/skool/quiz/the-four-cs/beyond-z-fancy-color-and-fluorescence
image: https://digitalgemology.com/img/og-digital-gemology.png?v=d224fb01
---

> Markdown copy of https://digitalgemology.com/skool/quiz/the-four-cs/beyond-z-fancy-color-and-fluorescence. 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 four Cs](https://digitalgemology.com/skool/quiz/the-four-cs#lessons) · lesson 4

# Beyond Z: fancy color and fluorescence

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

Five questions on lesson 4 of The four Cs. 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: When does a yellow diamond become a fancy color?
  ### Show the answer
  **b**: Past Z it is treated as a colored diamond, and a strong enough color gets a fancy grade.
2. Question 2: On the fancy scale, which is usually more valued?
  ### Show the answer
  **b**: On the fancy scale, a stronger and purer color is the prize.
3. Question 3: What color is the fluorescence of most fluorescent diamonds?
  ### Show the answer
  **a**: More than 95% of fluorescent diamonds glow blue.
4. Question 4: Your stone has Strong blue fluorescence. What does that do to its color grade?
  ### Show the answer
  **c**: The report lists it as an extra characteristic that helps to identify the stone.
5. Question 5: In the [simulator](https://digitalgemology.com/tools/3d_gemstone_simulator), a Very strong stone looks just like a None stone in Photo studio. Why?
  ### Show our answer
  The glow shows only under UV light. GIA found that for most diamonds, fluorescence makes no difference you can see in daylight.

## More

- Next: [Lesson 5, Clarity: eleven grades at 10x](https://digitalgemology.com/skool/quiz/the-four-cs/clarity)
- [The The four Cs quiz](https://digitalgemology.com/skool/quiz/the-four-cs), on the whole course
- [All The four Cs lesson quizzes](https://digitalgemology.com/skool/quiz/the-four-cs#lessons)
- [The four Cs: all the lessons](https://digitalgemology.com/learn/four-cs)