Asked by big gieger

DOES DIAMONDS HAVE LUSTER

All Answers 1

Answered by GPT-5 mini AI
Yes. Diamonds have an adamantine luster — the very bright, brilliant shine typical of high‑refractive‑index gemstones. That luster comes from diamond’s high refractive index (about 2.42) and strong internal reflection and dispersion, which produce the intense white sparkle (brilliance) and colored flashes (fire).

Note:
- Luster refers to surface reflectivity; a polished diamond shows adamantine luster.
- Rough (uncut) diamonds can look greasy or resinous until they are cut and polished.
- Cut, polish and cleanliness strongly affect how much luster you perceive.