18kt yellow gold banana diamond ringThis 18K yellow gold Bibi van der Velden Banana diamond ring features a peeled banana motif decorated with brown single cut diamonds totalling 0. 255 carat, interrupted with touches of sterling silver. Its set atop a slim rose gold band with a polished finish. Most people know bananas are a good snack, but theyre even better as jewellery. Bibi van der Velden is ahead of the curve, as always.