Correct. Starting at 3 on the bracelet axis, move up to the purple region. The region contains the points $\displaystyle{\left({3},{6}\right)}\usepackage{cmbright}\Huge\$ and $\displaystyle{\left({3},{7}\right)}\usepackage{cmbright}\Huge\$ . This means that the number of necklaces could be 6 or 7.