Which diamond cut holds its value?

I'm curious to know, which diamond cut truly stands the test of time and consistently retains its value? Is it the timeless brilliance of the Round Brilliant Cut, or perhaps the elegant symmetry of the Princess Cut? Could the vintage charm of the Emerald Cut be the one that truly captures the hearts and wallets of collectors and investors alike? Or is there another, lesser-known cut that offers an even greater potential for appreciation? I'm eager to understand which diamond cut is the most sought-after and consistently holds its value in the ever-evolving world of jewelry and finance.