10/26/2026
My favourite are the ones with intense enough fluorescence (usually Strong to Very Strong) that they respond to the UV in natural daylight, causing them to fluoresce in the sun, like the 1.8ct antique cut Pear at the end 🪲
Fluorescent stones absorb UV at the atomic level, which “excites” their electrons, causing them to temporarily shift from a stable state to an unstable, high-energy, excited state. As they return back to their stable states, the energy is released in the form of luminescence, which is why they glow under UV exposure.
I listed a couple of kinds of fluorescence in this video, however, there are also diamonds that fluoresce a range of different colours, including White, Red, Green!