Why Gemstones Look Different in Different Light
Learn why gemstones look different in different light, how pleochroism differs from true color change, and how to compare color fairly.
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Why Gemstones Sparkle Differently: Refractive Index, Dispersion, and Rainbow Fire
The same light can make one gemstone flash white and another throw rainbow color. Refractive index sets the light paths, dispersion separates color, and the cut decides what reaches your eye.
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Stop Falling for the Word Games: Lab-Grown Diamond vs. Moissanite vs. Cubic Zirconia
An honest physics comparison of lab-grown diamond, moissanite, and cubic zirconia: hardness, refractive index, thermal testers, and price bands — plus a simple guide to which stone fits your wear habits and budget.
