
Another synthetic gem once popular as a diamond simulant, lithium niobate's dispersion of 0.13 also exceeds diamond's dispersion. Lithium Niobate: Rounds, ~ 10, 15 carats. © Joel E. Arem, PhD, FGA. Used with permission.
Lab-Created Colorless Diamond Faceted
Another synthetic gem once popular as a diamond simulant, lithium niobate's dispersion of 0.13 also exceeds diamond's dispersion. Lithium niobate rounds, approximately 10 and 15 carats. © Joel E. Arem, PhD, FGA. Used with permission.
Article: Are Diamonds Really Rare? Diamond Myths and Misconceptions
Credit: Joel E. Arem, PhD, FGA
| Gemstone | Diamond |
| Natural or man made | Lab-made |
| Gem State | Faceted |
| Color | Colorless |
| Transparency | Transparent |