What makes this diamond so fiery?

[Cerulean]

Is this diamond particularly fiery or is just this video?

What am I looking at? It seems especially fiery compared to other OECs and I’m mesmerized by it!

1.54 Carat Old European Cut Natural Mined Diamond L Color SI2 Clarity With GIA Certificate

Shape:Old European Cut, Carat Weight:1.54, Color Grade:L, Fancy Color:N/A, Fancy Color Intensity:N/A, Fancy Color Overtone:N/A, Clarity Grade:SI2, Length:7.78 , Width:7.58 , Depth:4.34 , Cut Grade:N/A, Polish:Good, Symmetry:Good, Fluorescence:None, Stone Ratio:1.03, Table %:47, Depth %:56.5...

47jewelry.com

 

[Karl_K]

led lighting
It sure makes it look pretty.

 

[Garry H (Cut Nut)]

As Karl mentioned - LEDs .
Also, strangely, the polish lines add to the fire effect.