What about the Ritter Royal Flora Aurum?
Is the tone improved by having the details below? Remember it did cost £250k.
The fingerboard inlay features flowers made of 24-karat gold, with platinum-dipped black diamonds on each leaf. This bass is literally dripping in gold; the tuner, bridge, knobs, and buttons are all made of gold.
Not only that, but diamonds top each knob. The knob position marks are made of green diamonds. If this bass didn’t get any more extra, the nut is made of ivory from a 10,000-year-old Siberian Mammoth.