Natural Yellow Turquoise(Jasper) Beads Strands, RoundSize: about 4~4.5mm diameter, hole: 0.8mm; about 87pcs/strand, 15.5 inch.â Yellow Turquoise is a jasper stone that has similar properties to turquoise. This stone is called Yellow Turquoise as it occurs in the similar mines as the turquoise and has the similar matrix patterns.