True or False: Simulants can be natural or human-made.

• A. True
• B. False
• C. Not applicable
• D. Depends on material

Answer: (A)

Simulants are materials that imitate a diamond’s appearance but aren’t diamonds themselves. Because look-alike materials can occur in nature or be produced in the lab, simulants can be either natural or human-made. Natural examples include common look-alikes such as white sapphire, white spinel, or quartz that can occur in nature and resemble a diamond in color and sparkle. Lab-made examples include cubic zirconia and moissanite, which are manufactured specifically to mimic diamond. The statement is true because simulants cover both origins—natural look-alikes and synthetic look-alikes—depending on how they’re formed, not on a single origin. The other options don’t fit since they deny one or both possible origins or treat the origin as irrelevant.