---
title: "Two look-alikes, two materials: lesson quiz"
description: "Five questions on “Two look-alikes, two materials”, lesson 1 of Digital Gemology's Diamond vs moissanite course, in a new order every time, with an explanation for every answer."
url: https://digitalgemology.com/skool/quiz/diamond-vs-moissanite/two-look-alikes-two-materials
image: https://digitalgemology.com/img/og-digital-gemology.png?v=d224fb01
---

> Markdown copy of https://digitalgemology.com/skool/quiz/diamond-vs-moissanite/two-look-alikes-two-materials. 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

[Diamond vs moissanite](https://digitalgemology.com/skool/quiz/diamond-vs-moissanite#lessons) · lesson 1

# Two look-alikes, two materials

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

Five questions on lesson 1 of Diamond vs moissanite. 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: A listing calls a moissanite a "lab-grown diamond". What's wrong?
  ### Show the answer
  **b**: "lab-grown" tells you where a stone was made, not what it is. Moissanite is silicon carbide.
2. Question 2: Which of these is a diamond simulant?
  ### Show the answer
  **c**: HPHT and CVD diamonds are diamond. Moissanite only looks like one.
3. Question 3: Why does the [simulator](https://digitalgemology.com/tools/3d_gemstone_simulator) let you choose natural or lab-grown for diamond, but not for moissanite?
  ### Show the answer
  **b**: Natural moissanite exists, but the largest known crystal is 4.1 mm, so gem moissanite is always grown.
4. Question 4: What crystal system does moissanite belong to?
  ### Show the answer
  **b**: Hexagonal layers, where diamond is cubic.
5. Question 5: You turn both crystal models on the gemstone pages. Without reading the labels, name one difference you can see.
  ### Show our answer
  For example: moissanite has two kinds (colors) of atom and diamond has one. Or: moissanite has hexagonal layers and diamond has a cubic cell.

## More

- Next: [Lesson 2, The property card](https://digitalgemology.com/skool/quiz/diamond-vs-moissanite/the-property-card)
- [The Diamond vs moissanite quiz](https://digitalgemology.com/skool/quiz/diamond-vs-moissanite), on the whole course
- [All Diamond vs moissanite lesson quizzes](https://digitalgemology.com/skool/quiz/diamond-vs-moissanite#lessons)
- [Diamond vs moissanite: all the lessons](https://digitalgemology.com/learn/diamond-vs-moissanite)