Each individual stone has a different pattern, color and tone on the surface. Images shown are for illustration purposes only. This item is sold individually. Not as a pair. - Made in Japan.- 10K Yellow Gold, 18K Yellow Gold. - Length 5.7 cm(approx.).- Onyx diameter 1.5 cm(approx.), Quartz diameter 2.1 cm(approx.), Bead diameter 4 mm(approx.)- Cylinder backing(10k)